diff --git a/app/Http/Controllers/MfmParameterController.php b/app/Http/Controllers/MfmParameterController.php
index f7df9dc..39d55f0 100644
--- a/app/Http/Controllers/MfmParameterController.php
+++ b/app/Http/Controllers/MfmParameterController.php
@@ -2,6 +2,7 @@
 
 namespace App\Http\Controllers;
 
+use App\Models\DeviceMaster;
 use App\Models\MfmMeter;
 use App\Models\MfmParameter;
 use App\Models\Plant;
@@ -95,6 +96,7 @@ class MfmParameterController extends Controller
 
         $plantCode  = $request->header('plant-code');
         $mfmParameterSeq = $request->header('mfm-meter-sequence');
+        $deviceName = $request->header('device-name');
 
         if (!$plantCode) {
             return response()->json([
@@ -108,9 +110,17 @@ class MfmParameterController extends Controller
                 'status_description' => "Mfm Parameter sequence value can't be empty"
             ], 404);
         }
+        else if (!$deviceName) {
+            return response()->json([
+                'status_code' => 'ERROR',
+                'status_description' => "Device name value can't be empty"
+            ], 404);
+        }
 
         $plant = Plant::where('code', $plantCode)->first();
 
+        $device = DeviceMaster::where('name', $deviceName)->first();
+
         if (!$plant)
         {
             return response()->json([
@@ -118,9 +128,11 @@ class MfmParameterController extends Controller
                 'status_description' => "Plant Code '{$plantCode}' not found!"
             ], 404);
         }
+
         // Find mfm_meter by sequence and plant_id
         $mfmMeter = MfmMeter::where('sequence', trim($mfmParameterSeq))
             ->where('plant_id', $plant->id)
+            ->where('device_master_id', $device->id)
             ->first();
 
         if (!$mfmMeter) {
@@ -133,6 +145,7 @@ class MfmParameterController extends Controller
         // Now fetch mfm_parameters for this plant and meter
         $mfmParameters = MfmParameter::where('plant_id', $plant->id)
             ->where('mfm_meter_id', $mfmMeter->id)
+            ->where('device_master_id', $device->id)
             ->get(['register_id', 'byte_to_convert', 'type_to_convert', 'decimal_to_display']);
 
             $transformed = $mfmParameters->map(function ($item) {
@@ -159,7 +172,7 @@ class MfmParameterController extends Controller
         if ($transformed->isEmpty()) {
             return response()->json([
                 'status_code' => 'ERROR',
-                'status_description' => "No MFM parameters found for the specified plant and meter."
+                'status_description' => "No MFM parameters found for the specified plant,meter and device name."
             ], 404);
         }