diff --git a/src/controllers/tanksController.js b/src/controllers/tanksController.js
index 256c7dce..44f28967 100644
--- a/src/controllers/tanksController.js
+++ b/src/controllers/tanksController.js
@@ -5861,8 +5861,9 @@ const deviceLastSeen = new Map(); // Track last seen timestamps for devices
 // Connect a single global MQTT client
 const mqttClient = mqtt.connect(brokerUrl, {
   clientId: 'global_subscriber',
-  clean: true,
+  clean: false, // Retain session state
   reconnectPeriod: 5000, // Reconnect every 5 seconds
+  keepalive: 60, // Send a ping every 60 seconds
 });
 
 // Event: When the MQTT client connects
@@ -5884,13 +5885,10 @@ mqttClient.on('message', async (topic, message) => {
   try {
     console.log(`📩 Message received on topic ${topic}:`, message.toString());
 
-    // Parse the message
     const data = JSON.parse(message.toString());
     const { hw_Id, Motor_status, tanks } = data.objects;
 
-    // Log the device ID and current time
-    const currentTime = moment().tz('Asia/Kolkata').format('DD-MMM-YYYY - HH:mm');
-    console.log(`📅 Device ${hw_Id} last seen at: ${currentTime}`);
+    console.log(`📅 Device ${hw_Id} last seen at: ${moment().tz('Asia/Kolkata').format('DD-MMM-YYYY - HH:mm')}`);
 
     // Update the last seen timestamp for the device
     deviceLastSeen.set(hw_Id, new Date().toISOString());
@@ -5902,10 +5900,10 @@ mqttClient.on('message', async (topic, message) => {
       tanks: tanks.map((tank) => ({
         tankhardwareId: tank.Id,
         tankHeight: tank.level,
-        date: currentTime,
+        date: moment().tz('Asia/Kolkata').format('DD-MMM-YYYY - HH:mm'),
         time: moment().tz('Asia/Kolkata').format('HH:mm'),
       })),
-      date: currentTime,
+      date: moment().tz('Asia/Kolkata').format('DD-MMM-YYYY - HH:mm'),
       time: moment().tz('Asia/Kolkata').format('HH:mm'),
     });
 
@@ -5996,9 +5994,6 @@ process.on('SIGINT', () => {
 });
 
 
-
-
-
 exports.getPendingAndCompletedsurveyOfparticularInstaller = async (request, reply) => {
   try {
     const { installationId } = request.params;