diff --git a/app/Controllers/ApiServiceController.php b/app/Controllers/ApiServiceController.php
index 52de9c37..7b49daa9 100644
--- a/app/Controllers/ApiServiceController.php
+++ b/app/Controllers/ApiServiceController.php
@@ -20,11 +20,17 @@ class ApiServiceController extends BaseController
     // protected $format = 'json';
     protected $db;
     protected $employeePolicyModel;
+    protected $medi_assist_primary_key;
+    protected $vidal_primary_key;
+    protected $icici_primary_key;
 
     public function __construct()
     {
         $this->db = \Config\Database::connect();
         $this->employeePolicyModel = new EmployeePolicyModel();
+        $this->medi_assist_primary_key = getenv('MEDI_ASSIST_PRIMARY_KEY_CONSTANT');
+        $this->vidal_primary_key = getenv('VIDAL_PRIMARY_KEY_CONSTANT');
+        $this->icici_primary_key = getenv('ICICI_PRIMARY_KEY_CONSTANT');
     }
 
     //  Push Claims
@@ -38,7 +44,7 @@ class ApiServiceController extends BaseController
 
             $tpaID = $data['tpa_id'];
 
-            if ($tpaID == 2) { // MediAssist
+            if ($tpaID == $this->medi_assist_primary_key) { // MediAssist
                 $mediAssistController = new MediAssistApiController();
                 return $mediAssistController->SubmitClaim($claimId);
             }else{
@@ -90,7 +96,7 @@ class ApiServiceController extends BaseController
           {
               if($employee_policy[0]['tpa_id'] != null)
               {
-                  if($employee_policy[0]['tpa_primary_id'] == 2)//Medi assist
+                  if($employee_policy[0]['tpa_primary_id'] == $this->medi_assist_primary_key)//Medi assist
                   {
                     $mediAssistController = new MediAssistApiController();
                     $data['eCardDownload'] = $mediAssistController->EcardRequest( $emp_code, $policy_no );
@@ -162,7 +168,7 @@ class ApiServiceController extends BaseController
             'created_by'=> get_session_userid(),
         ];
 
-        if ($tpa_id == 2) // MediAssist
+        if ($tpa_id == $this->medi_assist_primary_key) // MediAssist
         { 
             $file_id = $fileModel->insert($data);
             log_message('error', "Files table inserted successfully, File id : {$file_id}");