diff --git a/app/Controllers/AbdmTaskBoard.php b/app/Controllers/AbdmTaskBoard.php
index d4c0d7c..997c174 100644
--- a/app/Controllers/AbdmTaskBoard.php
+++ b/app/Controllers/AbdmTaskBoard.php
@@ -157,10 +157,7 @@ class AbdmTaskBoard extends BaseController
             }
 
             $taskType = (string) ($task['task_type'] ?? '');
-            $lastModified = ! empty($task['updated_at'])
-                ? (string) $task['updated_at']
-                : (! empty($task['created_at']) ? (string) $task['created_at'] : null);
-
+            $lastModified = AbdmTaskBoardSyncService::resolveTaskClinicalTimestamp($task, $this->db);
             $cooling = AbdmTaskBoardSyncService::calculateCooling($taskType, $lastModified);
 
             $task['cooling_active'] = ! empty($cooling['is_cooling_active']);
@@ -428,7 +425,10 @@ class AbdmTaskBoard extends BaseController
             return;
         }
 
-        $select = 'r.id, r.patient_id, r.patient_name, r.lab_type, r.charge_id, r.status, ' . implode(', ', $abhaSelectParts);
+        $labFields = $this->db->getFieldNames('lab_request') ?? [];
+        $dateFields = array_intersect(['reported_time', 'collected_time', 'Request_Date'], $labFields);
+        $dateSelect = ! empty($dateFields) ? (', r.' . implode(', r.', $dateFields)) : '';
+        $select = 'r.id, r.patient_id, r.patient_name, r.lab_type, r.charge_id, r.status' . $dateSelect . ', ' . implode(', ', $abhaSelectParts);
 
         $rows = $this->db->table('lab_request r')
             ->select($select)
@@ -466,6 +466,10 @@ class AbdmTaskBoard extends BaseController
                 continue;
             }
 
+            $clinTs = ! empty($row['reported_time'])
+                ? $row['reported_time']
+                : (! empty($row['collected_time']) ? $row['collected_time'] : ($row['Request_Date'] ?? ''));
+
             $this->taskService->createOrRefreshTask(
                 $taskType,
                 'diagnosis',
@@ -476,9 +480,10 @@ class AbdmTaskBoard extends BaseController
                 $abha,
                 'submit',
                 [
-                    'lab_type' => $labType,
-                    'invoice_id' => (int) ($row['charge_id'] ?? 0),
-                    'trigger' => 'task_board.backfill',
+                    'lab_type'           => $labType,
+                    'invoice_id'         => (int) ($row['charge_id'] ?? 0),
+                    'clinical_timestamp' => (string) $clinTs,
+                    'trigger'            => 'task_board.backfill',
                 ]
             );
         }
@@ -1217,6 +1222,18 @@ class AbdmTaskBoard extends BaseController
                 continue;
             }
 
+            $exists = $this->db->table('abdm_work_tasks')
+                ->select('id')
+                ->where('task_type', 'health_document_publish')
+                ->where('entity_type', 'doctor_document')
+                ->where('entity_id', (string) $docId)
+                ->whereIn('status', ['pending', 'in_progress', 'completed'])
+                ->get(1)
+                ->getRowArray();
+            if (! empty($exists)) {
+                continue;
+            }
+
             $patientName = trim((string) ($row['p_fname'] ?? ''));
             $this->taskService->createOrRefreshTask(
                 'health_document_publish',
@@ -1228,8 +1245,9 @@ class AbdmTaskBoard extends BaseController
                 $abhaId,
                 'submit',
                 [
-                    'patient_doc_id' => $docId,
-                    'trigger' => 'patient_doc.compiled',
+                    'patient_doc_id'     => $docId,
+                    'clinical_timestamp' => (string) (! empty($row['created_at']) ? $row['created_at'] : ($row['date_issue'] ?? '')),
+                    'trigger'            => 'patient_doc.compiled',
                 ]
             );
         }
@@ -1253,6 +1271,18 @@ class AbdmTaskBoard extends BaseController
                     continue;
                 }
 
+                $exists = $this->db->table('abdm_work_tasks')
+                    ->select('id')
+                    ->where('task_type', 'health_document_publish')
+                    ->where('entity_type', 'patient_document')
+                    ->where('entity_id', (string) $fileId)
+                    ->whereIn('status', ['pending', 'in_progress', 'completed'])
+                    ->get(1)
+                    ->getRowArray();
+                if (! empty($exists)) {
+                    continue;
+                }
+
                 $patientName = trim((string) ($fRow['p_fname'] ?? ''));
                 $this->taskService->createOrRefreshTask(
                     'health_document_publish',
@@ -1264,8 +1294,9 @@ class AbdmTaskBoard extends BaseController
                     $abhaId,
                     'submit',
                     [
-                        'file_upload_id' => $fileId,
-                        'trigger' => 'file_upload_data.created',
+                        'file_upload_id'     => $fileId,
+                        'clinical_timestamp' => (string) ($fRow['insert_date'] ?? ''),
+                        'trigger'            => 'file_upload_data.created',
                     ]
                 );
             }
@@ -1317,6 +1348,18 @@ class AbdmTaskBoard extends BaseController
                 continue;
             }
 
+            $exists = $this->db->table('abdm_work_tasks')
+                ->select('id')
+                ->where('task_type', 'wellness_record_publish')
+                ->where('entity_type', 'opd_vitals')
+                ->where('entity_id', (string) $rxId)
+                ->whereIn('status', ['pending', 'in_progress', 'completed'])
+                ->get(1)
+                ->getRowArray();
+            if (! empty($exists)) {
+                continue;
+            }
+
             $patientName = trim((string) ($row['p_fname'] ?? ''));
             $this->taskService->createOrRefreshTask(
                 'wellness_record_publish',
@@ -1329,8 +1372,9 @@ class AbdmTaskBoard extends BaseController
                 'submit',
                 [
                     'opd_prescription_id' => $rxId,
-                    'opd_session_id' => $opdId,
-                    'trigger' => 'vitals.backfilled',
+                    'opd_session_id'      => $opdId,
+                    'clinical_timestamp'  => (string) ($row['date_opd_visit'] ?? ''),
+                    'trigger'             => 'vitals.backfilled',
                 ]
             );
         }
diff --git a/app/Controllers/DoctorDocument.php b/app/Controllers/DoctorDocument.php
index b755219..3f73544 100644
--- a/app/Controllers/DoctorDocument.php
+++ b/app/Controllers/DoctorDocument.php
@@ -2540,9 +2540,9 @@ class DoctorDocument extends BaseController
         $visitDate = (string) ($source['visit_date'] ?? date('Y-m-d'));
         $doctorName = (string) ($source['doctor_name'] ?? '');
 
-        if ($patientId > 0 && preg_match('/^\d{14}$/', $abhaDigits) === 1 && class_exists('\App\Libraries\Abdm\Task\AbdmTaskService')) {
+        if ($patientId > 0 && preg_match('/^\d{14}$/', $abhaDigits) === 1 && class_exists('\App\Libraries\AbdmWorkTaskService')) {
             try {
-                $taskService = new \App\Libraries\Abdm\Task\AbdmTaskService();
+                $taskService = new \App\Libraries\AbdmWorkTaskService();
                 $taskService->createOrRefreshTask(
                     'health_document_publish',
                     'patient_doc',
@@ -2554,6 +2554,7 @@ class DoctorDocument extends BaseController
                     'submit',
                     [
                         'patient_doc_id' => $patientDocId,
+                        'clinical_timestamp' => (string) ($source['visit_date'] ?? date('Y-m-d H:i:s')),
                         'trigger' => 'patient_doc.compiled',
                     ]
                 );
diff --git a/app/Controllers/Patient.php b/app/Controllers/Patient.php
index a78d479..599134a 100644
--- a/app/Controllers/Patient.php
+++ b/app/Controllers/Patient.php
@@ -6043,9 +6043,9 @@ class Patient extends BaseController
 		$adapter = new \App\Libraries\Abdm\Fhir\Support\GatewayPayloadAdapter();
 		$gatewayPayload = $adapter->toGatewayPayload($generatorOutput, $source, $hfrId);
 
-		if ($pid > 0 && preg_match('/^\d{14}$/', $abhaDigits) === 1 && class_exists('\App\Libraries\Abdm\Task\AbdmTaskService')) {
+		if ($pid > 0 && preg_match('/^\d{14}$/', $abhaDigits) === 1 && class_exists('\App\Libraries\AbdmWorkTaskService')) {
 			try {
-				$taskService = new \App\Libraries\Abdm\Task\AbdmTaskService();
+				$taskService = new \App\Libraries\AbdmWorkTaskService();
 				$taskService->createOrRefreshTask(
 					'health_document_publish',
 					'file_upload_data',
@@ -6057,6 +6057,7 @@ class Patient extends BaseController
 					'submit',
 					[
 						'file_upload_id' => $fileUploadId,
+						'clinical_timestamp' => date('Y-m-d H:i:s'),
 						'trigger' => 'file_upload_data.created',
 					]
 				);
@@ -6167,9 +6168,9 @@ class Patient extends BaseController
 		$patientName = (string) ($source['patient']['name'] ?? 'Patient');
 		$abhaDigits = (string) ($source['patient']['abha_id'] ?? '');
 
-		if ($patientId > 0 && preg_match('/^\d{14}$/', $abhaDigits) === 1 && class_exists('\App\Libraries\Abdm\Task\AbdmTaskService')) {
+		if ($patientId > 0 && preg_match('/^\d{14}$/', $abhaDigits) === 1 && class_exists('\App\Libraries\AbdmWorkTaskService')) {
 			try {
-				$taskService = new \App\Libraries\Abdm\Task\AbdmTaskService();
+				$taskService = new \App\Libraries\AbdmWorkTaskService();
 				$taskService->createOrRefreshTask(
 					'wellness_record_publish',
 					'opd_prescription',
@@ -6181,6 +6182,7 @@ class Patient extends BaseController
 					'submit',
 					[
 						'opd_session_id' => $opdSessionId,
+						'clinical_timestamp' => (string) ($source['visit_date'] ?? date('Y-m-d H:i:s')),
 						'trigger' => 'vitals.saved',
 					]
 				);
diff --git a/app/Libraries/Abdm/Sync/AbdmTaskBoardSyncService.php b/app/Libraries/Abdm/Sync/AbdmTaskBoardSyncService.php
index fe7e1d6..5304c71 100644
--- a/app/Libraries/Abdm/Sync/AbdmTaskBoardSyncService.php
+++ b/app/Libraries/Abdm/Sync/AbdmTaskBoardSyncService.php
@@ -557,6 +557,9 @@ class AbdmTaskBoardSyncService
             return $summary;
         }
 
+        // Auto-discover any newly completed clinical records with ABHA
+        $this->backfillMissingWorkTasks(30, 100);
+
         $supportedTaskTypes = [
             'opd_prescription_publish',
             'lab_report_publish',
@@ -567,11 +570,12 @@ class AbdmTaskBoardSyncService
             'ipd_discharge_publish',
         ];
 
+        // Fetch candidate batch wider than $limit to bypass cooling or retrying items without queue starvation
         $tasks = $this->db->table('abdm_work_tasks')
             ->whereIn('task_type', $supportedTaskTypes)
             ->whereIn('status', ['pending', 'in_progress'])
             ->orderBy('id', 'ASC')
-            ->limit(max(1, $limit))
+            ->limit(max(60, $limit * 3))
             ->get()
             ->getResultArray();
 
@@ -579,6 +583,8 @@ class AbdmTaskBoardSyncService
             return $summary;
         }
 
+        $processedCount = 0;
+
         foreach ($tasks as $task) {
             $taskId = (int) $task['id'];
             $taskType = (string) $task['task_type'];
@@ -586,8 +592,8 @@ class AbdmTaskBoardSyncService
             $patientId = (int) ($task['patient_id'] ?? 0);
             $abhaId = trim((string) ($task['abha_id'] ?? ''));
 
-            // Check cooling period from the latest modification/refresh timestamp
-            $lastModified = ! empty($task['updated_at']) ? $task['updated_at'] : ($task['created_at'] ?? date('Y-m-d H:i:s'));
+            // Check cooling period from the actual clinical event/modification timestamp
+            $lastModified = self::resolveTaskClinicalTimestamp($task, $this->db);
             $cooling = self::calculateCooling($taskType, $lastModified);
 
             if ($cooling['is_cooling_active']) {
@@ -614,6 +620,10 @@ class AbdmTaskBoardSyncService
                     'patient'   => $task['patient_name'] ?? '',
                     'status'    => 'dry_run_eligible',
                 ];
+                $processedCount++;
+                if ($processedCount >= $limit) {
+                    break;
+                }
                 continue;
             }
 
@@ -636,11 +646,29 @@ class AbdmTaskBoardSyncService
                 ];
             } else {
                 $summary['failed']++;
-                $this->taskService->markTaskStatus(
-                    $taskId,
-                    'pending', // remain pending for retry on next cron tick
-                    'Cron retry pending: ' . ($result['error'] ?? 'Sync failed')
-                );
+                $payload = ! empty($task['payload_json']) ? json_decode((string) $task['payload_json'], true) : [];
+                $retryCount = (int) ($payload['retry_count'] ?? 0) + 1;
+                $payload['retry_count'] = $retryCount;
+                $payload['last_error'] = (string) ($result['error'] ?? 'Sync failed');
+                $payload['last_failed_at'] = Time::now('Asia/Kolkata')->toDateTimeString();
+
+                $errJson = (string) json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+                $this->db->table('abdm_work_tasks')->where('id', $taskId)->update(['payload_json' => $errJson]);
+
+                if ($retryCount >= 5) {
+                    $this->taskService->markTaskStatus(
+                        $taskId,
+                        'failed',
+                        'Max cron retries (5) exceeded: ' . ($result['error'] ?? 'Sync failed')
+                    );
+                } else {
+                    $this->taskService->markTaskStatus(
+                        $taskId,
+                        'pending', // remain pending for retry on next cron tick
+                        'Cron retry #' . $retryCount . ' pending: ' . ($result['error'] ?? 'Sync failed')
+                    );
+                }
+
                 $summary['details'][] = [
                     'task_id'   => $taskId,
                     'task_type' => $taskType,
@@ -649,6 +677,11 @@ class AbdmTaskBoardSyncService
                     'error'     => $result['error'] ?? 'Sync failed',
                 ];
             }
+
+            $processedCount++;
+            if ($processedCount >= $limit) {
+                break;
+            }
         }
 
         return $summary;
@@ -724,7 +757,8 @@ class AbdmTaskBoardSyncService
             $abhaNumber = trim((string) $patientRow['abha_id']);
         }
 
-        $visitDate = date('Y-m-d');
+        $clinTs = self::resolveTaskClinicalTimestamp($task, $this->db);
+        $visitDate = ! empty($clinTs) && strtotime($clinTs) > 0 ? date('Y-m-d', strtotime($clinTs)) : date('Y-m-d');
         $prefix = match ($taskType) {
             'radiology_report_publish'    => 'RAD-',
             'lab_report_publish'          => 'LAB-',
@@ -942,5 +976,286 @@ class AbdmTaskBoardSyncService
     {
         return self::calculateCooling($taskType, $lastModified);
     }
+
+    /**
+     * Resolves the actual clinical / event timestamp for a task to accurately measure cooling.
+     * Checks task payload meta, underlying clinical record tables, and falls back to created_at.
+     *
+     * @param array<string, mixed> $task
+     */
+    public static function resolveTaskClinicalTimestamp(array $task, ?BaseConnection $db = null): string
+    {
+        $payload = ! empty($task['payload_json']) ? json_decode((string) $task['payload_json'], true) : [];
+        $meta = is_array($payload) ? ($payload['meta'] ?? []) : [];
+
+        // 1. Direct meta timestamps
+        foreach (['clinical_timestamp', 'event_date', 'reported_time', 'collected_time', 'given_date', 'date_opd_visit', 'discharge_date'] as $key) {
+            if (! empty($meta[$key]) && strtotime((string) $meta[$key]) > 0) {
+                return (string) $meta[$key];
+            }
+        }
+
+        $taskType = (string) ($task['task_type'] ?? '');
+        $entityType = (string) ($task['entity_type'] ?? '');
+        $entityId = (int) ($task['entity_id'] ?? 0);
+
+        if ($entityId > 0) {
+            try {
+                $dbConn = $db ?? db_connect();
+
+                // 2. Health Documents: file_upload_data or patient_doc
+                if (in_array($entityType, ['patient_document', 'file_upload_data'], true) || $taskType === 'health_document_publish') {
+                    if ($dbConn->tableExists('file_upload_data')) {
+                        $fRow = $dbConn->table('file_upload_data')->select('insert_date')->where('id', $entityId)->get(1)->getRowArray();
+                        if (! empty($fRow['insert_date']) && strtotime((string) $fRow['insert_date']) > 0) {
+                            return (string) $fRow['insert_date'];
+                        }
+                    }
+                    if ($dbConn->tableExists('patient_doc')) {
+                        $pRow = $dbConn->table('patient_doc')->select('created_at, date_issue')->where('id', $entityId)->get(1)->getRowArray();
+                        $date = ! empty($pRow['created_at']) ? $pRow['created_at'] : ($pRow['date_issue'] ?? null);
+                        if (! empty($date) && strtotime((string) $date) > 0) {
+                            return (string) $date;
+                        }
+                    }
+                }
+
+                // 3. Lab / Radiology: lab_request
+                if ($entityType === 'lab_request' || in_array($taskType, ['lab_report_publish', 'radiology_report_publish'], true)) {
+                    if ($dbConn->tableExists('lab_request')) {
+                        $fields = $dbConn->getFieldNames('lab_request');
+                        $selectCols = array_intersect(['reported_time', 'collected_time', 'Request_Date'], $fields);
+                        if (! empty($selectCols)) {
+                            $lRow = $dbConn->table('lab_request')->select(implode(', ', $selectCols))->where('id', $entityId)->get(1)->getRowArray();
+                            foreach (['reported_time', 'collected_time', 'Request_Date'] as $col) {
+                                if (! empty($lRow[$col]) && strtotime((string) $lRow[$col]) > 0) {
+                                    return (string) $lRow[$col];
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // 4. Immunization: immunization_records
+                if ($entityType === 'immunization' || $taskType === 'immunization_record_publish') {
+                    if ($dbConn->tableExists('immunization_records')) {
+                        $iRow = $dbConn->table('immunization_records')->select('given_date, created_at')->where('id', $entityId)->get(1)->getRowArray();
+                        $date = ! empty($iRow['given_date']) ? $iRow['given_date'] : ($iRow['created_at'] ?? null);
+                        if (! empty($date) && strtotime((string) $date) > 0) {
+                            return (string) $date;
+                        }
+                    }
+                }
+
+                // 5. Wellness: opd_prescription
+                if ($entityType === 'opd_prescription' || $entityType === 'opd_vitals' || $taskType === 'wellness_record_publish') {
+                    if ($dbConn->tableExists('opd_prescription')) {
+                        $fields = $dbConn->getFieldNames('opd_prescription');
+                        $dateCol = in_array('date_opd_visit', $fields, true) ? 'date_opd_visit' : 'id';
+                        $rxRow = $dbConn->table('opd_prescription')->select($dateCol)->where('id', $entityId)->get(1)->getRowArray();
+                        if (! empty($rxRow['date_opd_visit']) && strtotime((string) $rxRow['date_opd_visit']) > 0) {
+                            return (string) $rxRow['date_opd_visit'];
+                        }
+                    }
+                }
+
+                // 6. IPD Discharge: ipd_discharge
+                if ($entityType === 'ipd_discharge' || $taskType === 'ipd_discharge_publish') {
+                    if ($dbConn->tableExists('ipd_discharge')) {
+                        $dRow = $dbConn->table('ipd_discharge')->select('discharge_date, created_at')->where('id', $entityId)->get(1)->getRowArray();
+                        $date = ! empty($dRow['discharge_date']) ? $dRow['discharge_date'] : ($dRow['created_at'] ?? null);
+                        if (! empty($date) && strtotime((string) $date) > 0) {
+                            return (string) $date;
+                        }
+                    }
+                }
+            } catch (\Throwable) {
+                // Silently fallback
+            }
+        }
+
+        // Fallback to task's created_at, or updated_at
+        return ! empty($task['created_at'])
+            ? (string) $task['created_at']
+            : (! empty($task['updated_at']) ? (string) $task['updated_at'] : date('Y-m-d H:i:s'));
+    }
+
+    /**
+     * Backfill missing work tasks for finalized clinical records with ABHA.
+     * Ensures cron discovers and queues tasks even if staff haven't opened the web Task Board.
+     */
+    public function backfillMissingWorkTasks(int $days = 30, int $limit = 100): void
+    {
+        if (! $this->db->tableExists('abdm_work_tasks') || ! $this->db->tableExists('patient_master')) {
+            return;
+        }
+
+        $patientFields = $this->db->getFieldNames('patient_master') ?? [];
+        $abhaCol = $this->resolveFirstExistingColumn($patientFields, ['abha_id', 'abha_no', 'abha_address', 'abha']);
+        if ($abhaCol === null) {
+            return;
+        }
+
+        $sinceDate = date('Y-m-d H:i:s', strtotime("-{$days} days"));
+
+        // 1. Health Documents: file_upload_data
+        if ($this->db->tableExists('file_upload_data')) {
+            $fileRows = $this->db->table('file_upload_data f')
+                ->select('f.id, f.pid, f.insert_date, p.p_fname, p.' . $abhaCol . ' as abha_id', false)
+                ->join('patient_master p', 'p.id = f.pid', 'inner')
+                ->where('p.' . $abhaCol . ' !=', '')
+                ->where('f.insert_date >=', $sinceDate)
+                ->orderBy('f.id', 'DESC')
+                ->limit($limit)
+                ->get()
+                ->getResultArray();
+
+            foreach ($fileRows as $fRow) {
+                $fileId = (int) ($fRow['id'] ?? 0);
+                $patientId = (int) ($fRow['pid'] ?? 0);
+                $abhaId = trim((string) ($fRow['abha_id'] ?? ''));
+                if ($fileId <= 0 || $patientId <= 0 || preg_match('/^\d{14}$/', $abhaId) !== 1) {
+                    continue;
+                }
+
+                $exists = $this->db->table('abdm_work_tasks')
+                    ->select('id')
+                    ->where('task_type', 'health_document_publish')
+                    ->where('entity_type', 'patient_document')
+                    ->where('entity_id', (string) $fileId)
+                    ->get(1)
+                    ->getRowArray();
+                if (! empty($exists)) {
+                    continue;
+                }
+
+                $this->taskService->createOrRefreshTask(
+                    'health_document_publish',
+                    'file_upload_data',
+                    'patient_document',
+                    (string) $fileId,
+                    $patientId,
+                    trim((string) ($fRow['p_fname'] ?? '')),
+                    $abhaId,
+                    'submit',
+                    [
+                        'file_upload_id'     => $fileId,
+                        'clinical_timestamp' => (string) ($fRow['insert_date'] ?? ''),
+                        'trigger'            => 'cron.backfill',
+                    ]
+                );
+            }
+        }
+
+        // 2. Health Documents: patient_doc
+        if ($this->db->tableExists('patient_doc')) {
+            $docRows = $this->db->table('patient_doc pd')
+                ->select('pd.id, pd.p_id, pd.date_issue, pd.created_at, p.p_fname, p.' . $abhaCol . ' as abha_id', false)
+                ->join('patient_master p', 'p.id = pd.p_id', 'inner')
+                ->where('p.' . $abhaCol . ' !=', '')
+                ->where('pd.created_at >=', $sinceDate)
+                ->orderBy('pd.id', 'DESC')
+                ->limit($limit)
+                ->get()
+                ->getResultArray();
+
+            foreach ($docRows as $dRow) {
+                $docId = (int) ($dRow['id'] ?? 0);
+                $patientId = (int) ($dRow['p_id'] ?? 0);
+                $abhaId = trim((string) ($dRow['abha_id'] ?? ''));
+                if ($docId <= 0 || $patientId <= 0 || preg_match('/^\d{14}$/', $abhaId) !== 1) {
+                    continue;
+                }
+
+                $exists = $this->db->table('abdm_work_tasks')
+                    ->select('id')
+                    ->where('task_type', 'health_document_publish')
+                    ->where('entity_type', 'doctor_document')
+                    ->where('entity_id', (string) $docId)
+                    ->get(1)
+                    ->getRowArray();
+                if (! empty($exists)) {
+                    continue;
+                }
+
+                $this->taskService->createOrRefreshTask(
+                    'health_document_publish',
+                    'patient_doc',
+                    'doctor_document',
+                    (string) $docId,
+                    $patientId,
+                    trim((string) ($dRow['p_fname'] ?? '')),
+                    $abhaId,
+                    'submit',
+                    [
+                        'patient_doc_id'     => $docId,
+                        'clinical_timestamp' => (string) (! empty($dRow['created_at']) ? $dRow['created_at'] : ($dRow['date_issue'] ?? '')),
+                        'trigger'            => 'cron.backfill',
+                    ]
+                );
+            }
+        }
+
+        // 3. Lab & Radiology: lab_request
+        if ($this->db->tableExists('lab_request')) {
+            $labFields = $this->db->getFieldNames('lab_request') ?? [];
+            $dateFields = array_intersect(['reported_time', 'collected_time', 'Request_Date'], $labFields);
+            $dateSelect = ! empty($dateFields) ? (', r.' . implode(', r.', $dateFields)) : '';
+
+            $labRows = $this->db->table('lab_request r')
+                ->select('r.id, r.patient_id, r.patient_name, r.lab_type, r.charge_id, r.status' . $dateSelect . ', p.' . $abhaCol . ' as abha_id', false)
+                ->join('patient_master p', 'p.id = r.patient_id', 'inner')
+                ->where('r.status >=', 2)
+                ->where('p.' . $abhaCol . ' !=', '')
+                ->orderBy('r.id', 'DESC')
+                ->limit($limit)
+                ->get()
+                ->getResultArray();
+
+            foreach ($labRows as $lRow) {
+                $labReqId = (int) ($lRow['id'] ?? 0);
+                $patientId = (int) ($lRow['patient_id'] ?? 0);
+                $abhaId = trim((string) ($lRow['abha_id'] ?? ''));
+                if ($labReqId <= 0 || $patientId <= 0 || preg_match('/^\d{14}$/', $abhaId) !== 1) {
+                    continue;
+                }
+
+                $labType = (int) ($lRow['lab_type'] ?? 0);
+                $taskType = in_array($labType, [1, 2, 3, 4, 6], true) ? 'radiology_report_publish' : 'lab_report_publish';
+
+                $exists = $this->db->table('abdm_work_tasks')
+                    ->select('id')
+                    ->where('task_type', $taskType)
+                    ->where('entity_type', 'lab_request')
+                    ->where('entity_id', (string) $labReqId)
+                    ->get(1)
+                    ->getRowArray();
+                if (! empty($exists)) {
+                    continue;
+                }
+
+                $clinTs = ! empty($lRow['reported_time'])
+                    ? $lRow['reported_time']
+                    : (! empty($lRow['collected_time']) ? $lRow['collected_time'] : ($lRow['Request_Date'] ?? ''));
+
+                $this->taskService->createOrRefreshTask(
+                    $taskType,
+                    'diagnosis',
+                    'lab_request',
+                    (string) $labReqId,
+                    $patientId,
+                    trim((string) ($lRow['patient_name'] ?? '')),
+                    $abhaId,
+                    'submit',
+                    [
+                        'lab_type'           => $labType,
+                        'invoice_id'         => (int) ($lRow['charge_id'] ?? 0),
+                        'clinical_timestamp' => (string) $clinTs,
+                        'trigger'            => 'cron.backfill',
+                    ]
+                );
+            }
+        }
+    }
 }
 
diff --git a/app/Libraries/AbdmWorkTaskService.php b/app/Libraries/AbdmWorkTaskService.php
index aeccbb0..6b6252a 100644
--- a/app/Libraries/AbdmWorkTaskService.php
+++ b/app/Libraries/AbdmWorkTaskService.php
@@ -59,28 +59,54 @@ class AbdmWorkTaskService
             ->get(1)
             ->getRowArray();
 
-        $row = [
-            'source_module' => $sourceModule,
-            'patient_id' => $patientId > 0 ? $patientId : null,
-            'patient_name' => $patientName !== '' ? $patientName : null,
-            'abha_id' => $abhaId !== '' ? $abhaId : null,
-            'action_mode' => $actionMode !== '' ? $actionMode : null,
-            'payload_json' => (string) json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
-            'updated_at' => $now,
-        ];
+        $encodedPayload = (string) json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
 
         if (! empty($existing)) {
-            $this->db->table('abdm_work_tasks')->where('id', (int) $existing['id'])->update($row);
+            $existingPayload = (string) ($existing['payload_json'] ?? '');
+            $existingAbha = trim((string) ($existing['abha_id'] ?? ''));
+            $existingPatientId = (int) ($existing['patient_id'] ?? 0);
+
+            // Only update if meaningful data changed (avoids cooling period reset on idempotent refresh)
+            $needsUpdate = ($existingAbha !== $abhaId)
+                || ($existingPatientId !== $patientId)
+                || ($existingPayload !== $encodedPayload);
+
+            if ($needsUpdate) {
+                $updateRow = [
+                    'source_module' => $sourceModule,
+                    'patient_id'    => $patientId > 0 ? $patientId : null,
+                    'patient_name'  => $patientName !== '' ? $patientName : null,
+                    'abha_id'       => $abhaId !== '' ? $abhaId : null,
+                    'action_mode'   => $actionMode !== '' ? $actionMode : null,
+                    'payload_json'  => $encodedPayload,
+                    'updated_at'    => $now,
+                ];
+                $this->db->table('abdm_work_tasks')->where('id', (int) $existing['id'])->update($updateRow);
+            }
+
             return (int) $existing['id'];
         }
 
-        $row['task_code'] = $this->generateTaskCode();
-        $row['task_type'] = $taskType;
-        $row['entity_type'] = $entityType;
-        $row['entity_id'] = $entityId;
-        $row['status'] = 'pending';
-        $row['priority'] = 'normal';
-        $row['created_at'] = $now;
+        $createdAt = ! empty($meta['clinical_timestamp']) && strtotime((string) $meta['clinical_timestamp']) > 0
+            ? date('Y-m-d H:i:s', strtotime((string) $meta['clinical_timestamp']))
+            : $now;
+
+        $row = [
+            'task_code'     => $this->generateTaskCode(),
+            'task_type'     => $taskType,
+            'source_module' => $sourceModule,
+            'entity_type'   => $entityType,
+            'entity_id'     => $entityId,
+            'patient_id'    => $patientId > 0 ? $patientId : null,
+            'patient_name'  => $patientName !== '' ? $patientName : null,
+            'abha_id'       => $abhaId !== '' ? $abhaId : null,
+            'action_mode'   => $actionMode !== '' ? $actionMode : null,
+            'payload_json'  => $encodedPayload,
+            'status'        => 'pending',
+            'priority'      => 'normal',
+            'created_at'    => $createdAt,
+            'updated_at'    => $now,
+        ];
 
         $this->db->table('abdm_work_tasks')->insert($row);
         $insertId = (int) $this->db->insertID();
diff --git a/scripts/install_hms_cron.sh b/scripts/install_hms_cron.sh
index fc0c277..257f5bd 100644
--- a/scripts/install_hms_cron.sh
+++ b/scripts/install_hms_cron.sh
@@ -34,6 +34,7 @@ crontab -l 2>/dev/null | awk -v start="$BLOCK_START" -v end="$BLOCK_END" '
 cat >> "$TMP_CRON" <<EOF
 $BLOCK_START
 * * * * * cd $PROJECT_DIR && $PHP_BIN spark abdm:push-sync --limit=20 --worker=cron-abdm-m2 >> $LOG_DIR/abdm_push_sync.log 2>&1
+* * * * * cd $PROJECT_DIR && $PHP_BIN spark abdm:taskboard-sync --limit=20 >> $LOG_DIR/abdm_taskboard_sync.log 2>&1
 * * * * * cd $PROJECT_DIR && $PHP_BIN spark abdm:sms-notify --limit=20 >> $LOG_DIR/abdm_sms_notify.log 2>&1
 * * * * * cd $PROJECT_DIR && $PHP_BIN spark bridge:sync --limit 10 >> $LOG_DIR/bridge_sync.log 2>&1
 * * * * * cd $PROJECT_DIR && $PHP_BIN spark snomed:process-coding >> $LOG_DIR/snomed_process.log 2>&1
diff --git a/scripts/manage_hms_cron.sh b/scripts/manage_hms_cron.sh
index 3d90227..ab02686 100644
--- a/scripts/manage_hms_cron.sh
+++ b/scripts/manage_hms_cron.sh
@@ -104,6 +104,8 @@ cmd_install() {
 $BLOCK_START
 # ABDM M2 Care Context Push Sync (Every 1 minute)
 * * * * * cd $project_dir && $php_bin spark abdm:push-sync --limit=20 --worker=cron-abdm-m2 >> $log_dir/abdm_push_sync.log 2>&1
+# ABDM Work Task Board Auto-Link Sync (Every 1 minute)
+* * * * * cd $project_dir && $php_bin spark abdm:taskboard-sync --limit=20 >> $log_dir/abdm_taskboard_sync.log 2>&1
 # ABDM Deep-Link SMS Notification Sync (Every 1 minute)
 * * * * * cd $project_dir && $php_bin spark abdm:sms-notify --limit=20 >> $log_dir/abdm_sms_notify.log 2>&1
 # ABDM Bridge Records Sync (Every 1 minute)