diff --git a/src/controllers/installationController.js b/src/controllers/installationController.js
index 32a2ef59..7598623d 100644
--- a/src/controllers/installationController.js
+++ b/src/controllers/installationController.js
@@ -2414,6 +2414,91 @@ exports.raiseATicket = async (req, reply) => {
 };
 
 
+exports.raiseATicketBuildingDetails = async (req, reply) => {
+  try {
+    const { customerId, connected_to, installationId } = req.params;
+
+    if (!customerId || !connected_to || !installationId) {
+      return reply.code(400).send({ error: "customerId, connected_to, and installationId are required" });
+    }
+
+    const customer = await User.findOne({ customerId, installationId }).lean();
+    if (!customer) {
+      return reply.code(404).send({ message: "Customer not found." });
+    }
+
+    const sensors = await Insensors.find({ customerId });
+    if (!sensors.length) {
+      return reply.code(404).send({ message: "No sensors found for this customer." });
+    }
+
+    const masterSensor = sensors.find(s => (s.hardwareId?.trim() === connected_to.trim()));
+    if (!masterSensor) {
+      return reply.code(404).send({ message: "Master hardwareId not found." });
+    }
+
+    const latestMasterRecord = await IotData.findOne({ hardwareId: connected_to }).sort({ date: -1 }).lean();
+    if (!latestMasterRecord) {
+      return reply.code(404).send({ message: "No IoT data found for this hardwareId." });
+    }
+
+    const indiaTime = moment.tz(latestMasterRecord.date, "Asia/Kolkata");
+    const now = moment.tz("Asia/Kolkata");
+    const formattedNow = now.format("YYYY-MM-DD HH:mm:ss");
+
+    const diffInMinutesMaster = now.diff(indiaTime, "minutes");
+
+    if (diffInMinutesMaster > 1) {
+      await Insensors.updateOne(
+        { hardwareId: connected_to },
+        { $set: { lastTicketRaisedAt: formattedNow } }
+      );
+    }
+
+    const connectedSlaves = sensors.filter(sensor => sensor.connected_to?.trim() === connected_to.trim());
+
+    for (const slave of connectedSlaves) {
+      const slaveId = slave.hardwareId?.trim();
+      const matchedTank = latestMasterRecord.tanks.find(tank => tank.tankhardwareId === slaveId);
+
+      if (matchedTank && matchedTank.date) {
+        const tankTime = moment.tz(matchedTank.date, "Asia/Kolkata");
+        const loraDiffInMinutes = now.diff(tankTime, "minutes");
+
+        if (loraDiffInMinutes > 1) {
+          await Insensors.updateOne(
+            { hardwareId: slaveId },
+            { $set: { lastTicketRaisedAt: formattedNow } }
+          );
+        }
+      }
+    }
+
+    await Support.updateOne(
+      { supportId: "AWHYSU64" },
+      { $set: { lastTicketRaisedAt: formattedNow } }
+    );
+
+    // Fetch updated `lastTicketRaisedAt` values
+    const updatedMasterSensor = await Insensors.findOne({ hardwareId: connected_to }).lean();
+    const updatedSupport = await Support.findOne({ supportId: "AWHYSU64" }).lean();
+    console.log("updatedMasterSensor",updatedMasterSensor)
+    return reply.send({
+      status_code: 200,
+      customer,
+      lastTicketRaisedAt: {
+        masterSensor: updatedMasterSensor?.lastTicketRaisedAt || null,
+        support: updatedSupport?.lastTicketRaisedAt || null
+      }
+    });
+
+  } catch (error) {
+    console.error("Error raising ticket:", error);
+    return reply.code(500).send({ error: "Internal server error" });
+  }
+};
+
+
 exports.raiseATicketSlave = async (req, reply) => {
   try {
     const { customerId, connected_to, tankHardwareId } = req.params; // Now tankHardwareId from params
diff --git a/src/models/store.js b/src/models/store.js
index ecb965ca..ae4feec9 100644
--- a/src/models/store.js
+++ b/src/models/store.js
@@ -228,6 +228,7 @@ const installationschema = new mongoose.Schema({
      departmentName: { type: String, default: null },
      zone: { type: String, default: null },
      type: { type: String },
+     lastTicketRaisedAt: {type : String},
      issues: [{ type: Object }], // existing issues array
      masterDisconnected: [{  // new field for master disconnected details
        hardwareId: String,
@@ -468,7 +469,8 @@ lora_last_disconnect_time : { type: String, default: null },
     connecting_to_slave: { result: String },
     data_sending: { result: String },
     connected_slave_count: {type : String},
-    distance_check: {
+lastTicketRaisedAt: { type: String },    
+distance_check: {
       result: String,
       steps: [
         { step: Number, result: String }
diff --git a/src/routes/installationRoute.js b/src/routes/installationRoute.js
index 31f989c7..7a8b7fee 100644
--- a/src/routes/installationRoute.js
+++ b/src/routes/installationRoute.js
@@ -444,6 +444,26 @@ module.exports = function (fastify, opts, next) {
         handler: installationController.raiseATicket,
       });
 
+      fastify.get("/api/getraiseAticketBuildingDetails/:customerId/:connected_to/:installationId", {
+        schema: {
+          description: "Raise A Ticket for Support Building Details",
+          tags: ["Support"],
+          summary: "Raise A Ticket for Support Building Details",
+          params: {
+            type: "object",
+            properties: {
+              customerId: { type: "string" },
+              connected_to: { type: "string" },
+              installationId: { type: "string" },
+
+            },
+            required: [ "customerId"],
+          },
+        },
+        handler: installationController.raiseATicketBuildingDetails,
+      });
+
+
       fastify.get("/api/getraiseAticketslave/:customerId/:connected_to/:tankHardwareId", {
         schema: {
           description: "Raise A Ticket particular slave for Support",