diff --git a/src/controllers/installationController.js b/src/controllers/installationController.js
index 3f45fdb9..5c8fc203 100644
--- a/src/controllers/installationController.js
+++ b/src/controllers/installationController.js
@@ -3,7 +3,7 @@ const bcrypt = require('bcrypt');
 const jwt = require('jsonwebtoken'); 
 const customJwtAuth = require("../customAuthJwt");
 const { Deparments } = require("../models/Department");
-const { Install, SensorStock, SensorQuotation, Order, Insensors } = require("../models/store");
+const { Install, SensorStock, SensorQuotation, Order, Insensors, MasterSlaveData } = require("../models/store");
 const { Counter } = require("../models/User");
 const { IotData, Tank } = require("../models/tanks");
 const fastify = require("fastify")({
@@ -673,3 +673,46 @@ exports.getAllocatedSensorsByTank = async (req, reply) => {
     return reply.status(500).send({ error: "Internal server error" });
   }
 };
+
+exports.createMasterSlaveData = async (req, reply) => {
+  try {
+    const { installationId } = req.params; 
+    const {
+      type,
+      hardwareId,
+      batchno,
+      masterId,
+      tankName,
+      tankLocation,
+      materialRecived,
+      electicityWork,
+      plumbingWork,
+      loraCheck
+    } = req.body; 
+
+    if (!installationId || !hardwareId || !masterId) {
+      return reply.status(400).send({ message: "installationId, hardwareId, and masterId are required." });
+    }
+
+    const newData = new MasterSlaveData({
+      installationId,
+      type,
+      hardwareId,
+      batchno,
+      masterId,
+      tankName,
+      tankLocation,
+      materialRecived,
+      electicityWork,
+      plumbingWork,
+      loraCheck
+    });
+
+    // Save to database
+    await newData.save();
+
+    reply.status(201).send({ message: "Master-Slave data created successfully", data: newData });
+  } catch (err) {
+    reply.status(500).send({ message: err.message });
+  }
+};
diff --git a/src/models/store.js b/src/models/store.js
index bb91d1ff..7a077735 100644
--- a/src/models/store.js
+++ b/src/models/store.js
@@ -652,8 +652,28 @@ const salesSchema = new mongoose.Schema({
   updatedBy: ObjectId,
 }, { versionKey: false });
 
+
+const masterSlaveDataSchema = new mongoose.Schema({
+  installationId: {type: String},
+  type: { type: String},
+  hardwareId: { type: String },
+  batchno: { type: String, default: null },
+  masterId: { type: String },
+  tankName: { type: String },
+  tankLocation: { type: String },
+  materialRecived: { type: String },
+  electicityWork: { type: String },
+  plumbingWork: { type: String },
+  loraCheck: { type: String },
+ 
+}, {
+  timestamps: true,  
+});
+
 const Iotprice = mongoose.model('Iotprice', iotpriceSchema);
   const Insensors = mongoose.model('Insensors', insensorsSchema);
+  const MasterSlaveData = mongoose.model('MasterSlaveData', masterSlaveDataSchema);
+
   
   const Order = mongoose.model('Order', orderSchema);
   const EstimationOrder = mongoose.model('EstimationOrder', estimationorderSchema);
@@ -675,4 +695,4 @@ const Iotprice = mongoose.model('Iotprice', iotpriceSchema);
 
   
 
-  module.exports = {SensorStock,Order,EstimationOrder,Iotprice,Sales, Install,Survey, ProfilePictureInstall, SensorQuotation,generateinstallationId,Store,ProfilePictureStore,WaterLeverSensor,MotorSwitchSensor,Insensors,generatequatationId, HardwareCart, ServiceCart};
+  module.exports = {MasterSlaveData,SensorStock,Order,EstimationOrder,Iotprice,Sales, Install,Survey, ProfilePictureInstall, SensorQuotation,generateinstallationId,Store,ProfilePictureStore,WaterLeverSensor,MotorSwitchSensor,Insensors,generatequatationId, HardwareCart, ServiceCart};
diff --git a/src/routes/installationRoute.js b/src/routes/installationRoute.js
index f9aa6058..c2ca1113 100644
--- a/src/routes/installationRoute.js
+++ b/src/routes/installationRoute.js
@@ -279,6 +279,37 @@ module.exports = function (fastify, opts, next) {
         handler: installationController.getAllocatedSensorsByTank,
       });
       
+      fastify.post("/api/createMasterSlaveData/:installationId", {
+        schema: {
+          description: "Create a new Master-Slave data entry under an installation",
+          tags: ["Installation"],
+          summary: "Save Master-Slave Data",
+          params: {
+            type: "object",
+            required: ["installationId"],
+            properties: {
+              installationId: { type: "string", description: "Installation ID to associate the master-slave data with" }
+            }
+          },
+          body: {
+            type: "object",
+            required: ["hardwareId", "masterId"],
+            properties: {
+              type: { type: "string", description: "Type of the device (master/slave)" },
+              hardwareId: { type: "string", description: "Hardware ID of the device" },
+              batchno: { type: "string", description: "Batch number (optional)" },
+              masterId: { type: "string", description: "Master ID associated with the device" },
+              tankName: { type: "string", description: "Name of the tank" },
+              tankLocation: { type: "string", description: "Location of the tank" },
+              materialRecived: { type: "string", description: "Material received status" },
+              electicityWork: { type: "string", description: "Electricity work status" },
+              plumbingWork: { type: "string", description: "Plumbing work status" },
+              loraCheck: { type: "string", description: "LoRa check status" }
+            }
+          }
+        },
+        handler: installationController.createMasterSlaveData
+      });
       
     next();