diff --git a/src/controllers/installationController.js b/src/controllers/installationController.js
index 0084c62b..cbc83045 100644
--- a/src/controllers/installationController.js
+++ b/src/controllers/installationController.js
@@ -2062,3 +2062,83 @@ exports.getIotDataByCustomer = async (req, reply) => {
     return reply.code(500).send({ error: "Internal Server Error" });
   }
 };
+
+
+exports.getIotDataByCustomerAndHardwareId = async (req, reply) => {
+  try {
+    const { customerId, hardwareId } = req.params;
+
+    if (!customerId || !hardwareId) {
+      return reply.code(400).send({ error: "Both customerId and hardwareId are required" });
+    }
+
+    // Get all sensors for the customer
+    const sensors = await Insensors.find({ customerId });
+
+    if (!sensors.length) {
+      return reply.code(404).send({ message: "No sensors found for this customer." });
+    }
+
+    // Get IoT data for that master hardwareId
+    const latestRecord = await IotData.findOne({ hardwareId }).sort({ date: -1 }).lean();
+
+    if (!latestRecord) {
+      return reply.code(404).send({
+        hardwareId,
+        message: "No IoT data found",
+        tanks: []
+      });
+    }
+
+    const indiaTime = moment.tz(latestRecord.date, "Asia/Kolkata");
+    const now = moment.tz("Asia/Kolkata");
+    const diffInMinutes = now.diff(indiaTime, "minutes");
+    const gsmConnected = diffInMinutes <= 1;
+    const message = gsmConnected ? "GSM is connected" : "GSM is not connected";
+
+    // Get all slaves connected to this master
+    const connectedSlaves = sensors.filter(sensor => sensor.connected_to?.trim() === hardwareId);
+
+    // Enrich slave tanks with tank data and LoRa status
+    const tanks = connectedSlaves.map(slave => {
+      const slaveId = slave.hardwareId?.trim();
+      const matchedTank = latestRecord.tanks?.find(tank => tank.tankhardwareId === slaveId);
+
+      let loraConnected = false;
+      let loraMessage = "LORA is not connected";
+
+      if (matchedTank?.date && matchedTank.tankHeight !== "0") {
+        const tankTime = moment.tz(matchedTank.date, "Asia/Kolkata");
+        const loraDiff = now.diff(tankTime, "minutes");
+        loraConnected = loraDiff <= 1;
+        loraMessage = loraConnected ? "LORA is connected" : "LORA is not connected";
+      }
+
+      return {
+        tankhardwareId: slaveId,
+        tankName: slave.tankName ?? null,
+        tankLocation: slave.tankLocation ?? null,
+        masterName: slave.masterName ?? null,
+        location: slave.location ?? null,
+        loraMessage,
+        latestTankData: matchedTank ?? null
+      };
+    });
+
+    return reply.send({
+      status_code: 200,
+      message: "Success",
+      data: {
+        hardwareId,
+        message,
+        masterName: connectedSlaves[0]?.masterName ?? null,
+        location: connectedSlaves[0]?.location ?? null,
+        tanks
+      }
+    });
+
+  } catch (err) {
+    console.error("Error fetching IoT data by customerId and hardwareId:", err);
+    return reply.code(500).send({ error: "Internal Server Error" });
+  }
+};
diff --git a/src/routes/installationRoute.js b/src/routes/installationRoute.js
index 44166bcc..dcd1c919 100644
--- a/src/routes/installationRoute.js
+++ b/src/routes/installationRoute.js
@@ -409,6 +409,22 @@ module.exports = function (fastify, opts, next) {
         },
         handler: installationController.getIotDataByCustomer,
       });
+      fastify.get("/api/getAllmasterlistwithslaves/:customerId/:hardwareId", {
+        schema: {
+          description: "Get single check masrter connected slave data",
+          tags: ["Installation"],
+          summary: "Get single check masrter connected slave data",
+          params: {
+            type: "object",
+            properties: {
+              customerId: { type: "string" },
+              hardwareId: { type: "string" },
+            },
+            required: [ "customerId"],
+          },
+        },
+        handler: installationController.getIotDataByCustomerAndHardwareId,
+      });
 
     next();