diff --git a/functions/src/index.ts b/functions/src/index.ts
index 3a9f80c..5ae0cb5 100644
--- a/functions/src/index.ts
+++ b/functions/src/index.ts
@@ -1,59 +1,59 @@
 import { onRequest } from "firebase-functions/v2/https";
 import { Request } from "firebase-functions/v2/https";
-import { onDocumentCreated } from 'firebase-functions/v2/firestore';
 import * as admin from 'firebase-admin';
 import * as express from "express";
 import * as logger from "firebase-functions/logger";
 
+const functions = require('firebase-functions');
 const formData = require('form-data');
 const Mailgun = require('mailgun.js');
 const { convert } = require('html-to-text');
 const twilio = require('twilio')
 
 export const sendEmail = onRequest((request: Request, response: express.Response) => {
-    const mailgun = new Mailgun(formData);
-    const mailGunClient = mailgun.client({ username: 'api', key: process.env.MAILGUN_API_KEY });
+  const mailgun = new Mailgun(formData);
+  const mailGunClient = mailgun.client({ username: 'api', key: process.env.MAILGUN_API_KEY });
 
-    const toAddress = request.body.toAddress;
-    const subject = request.body.subject;
-    const message = request.body.message;
-    const options = {
-        wordwrap: 130,
-    };
+  const toAddress = request.body.toAddress;
+  const subject = request.body.subject;
+  const message = request.body.message;
+  const options = {
+    wordwrap: 130,
+  };
 
-    const textMessage = convert(message, options);
-    mailGunClient.messages.create(process.env.MAILGUN_SERVER, {
-        from: process.env.MAILGUN_FROM_ADDRESS,
-        to: toAddress,
-        subject: subject,
-        text: textMessage,
-        html: message
-    }).then((res: any) => {
-        logger.info(res);
-        response.send(res);
-    }).catch((err: any) => {
-        logger.error(err);
-        response.send(err);
-    });
+  const textMessage = convert(message, options);
+  mailGunClient.messages.create(process.env.MAILGUN_SERVER, {
+    from: process.env.MAILGUN_FROM_ADDRESS,
+    to: toAddress,
+    subject: subject,
+    text: textMessage,
+    html: message
+  }).then((res: any) => {
+    logger.info(res);
+    response.send(res);
+  }).catch((err: any) => {
+    logger.error(err);
+    response.send(err);
+  });
 });
 
 export const sendSMS = onRequest((request: Request, response: express.Response) => {
-    const client = twilio(process.env.TWILIO_ACCOUNT_SID, process.env.TWILIO_AUTH_TOKEN);
-    const { to, body } = request.body;
-    client.messages
-        .create({
-            body: body,
-            from: process.env.TWILIO_PHONE_NUMBER,
-            to: to
-        })
-        .then((message: any) => {
-            logger.info('SMS sent successfully:', message.sid);
-            response.json({ success: true, messageId: message.sid });
-        })
-        .catch((error: any) => {
-            logger.error('Error sending SMS:', error);
-            response.status(500).json({ success: false, error: error.message });
-        });
+  const client = twilio(process.env.TWILIO_ACCOUNT_SID, process.env.TWILIO_AUTH_TOKEN);
+  const { to, body } = request.body;
+  client.messages
+    .create({
+      body: body,
+      from: process.env.TWILIO_PHONE_NUMBER,
+      to: to
+    })
+    .then((message: any) => {
+      logger.info('SMS sent successfully:', message.sid);
+      response.json({ success: true, messageId: message.sid });
+    })
+    .catch((error: any) => {
+      logger.error('Error sending SMS:', error);
+      response.status(500).json({ success: false, error: error.message });
+    });
 });
 
 
@@ -64,9 +64,8 @@ interface Invitation {
   invitedByName: string;
 }
 
-export const sendInvitationNotification = onDocumentCreated(
-  'invitations/{invitationId}',
-  async (event) => {
+export const sendInvitationNotification = functions.region('asia-south1').firestore.document('notifications/{notificationId}')
+  .onCreate(async (event: { data: { data: () => Invitation; }; params: { invitationId: any; }; }) => {
     const invitation = event.data?.data() as Invitation;
     const invitationId = event.params.invitationId;
 
@@ -132,4 +131,4 @@ export const sendInvitationNotification = onDocumentCreated(
       return null;
     }
   }
-);
\ No newline at end of file
+  );
\ No newline at end of file