diff --git a/constants/subscription-validator.ts b/constants/subscription-validator.ts
index 0854d7ac9..78b05a88a 100644
--- a/constants/subscription-validator.ts
+++ b/constants/subscription-validator.ts
@@ -1 +1,2 @@
-export const emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
\ No newline at end of file
+export const emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
+export const phoneNumberRegex = /^[+]{1}(?:[0-9\-\\(\\)\\/.]\s?){6,15}[0-9]{1}$/;
\ No newline at end of file
diff --git a/middlewares/devFlag.ts b/middlewares/devFlag.ts
index 5887925af..643208cfb 100644
--- a/middlewares/devFlag.ts
+++ b/middlewares/devFlag.ts
@@ -1,4 +1,4 @@
-import { NextFunction, Request, Response } from "express";
+import { NextFunction } from "express";
 import { CustomRequest, CustomResponse } from "../types/global";
 
 export const devFlagMiddleware = (req: CustomRequest, res: CustomResponse, next: NextFunction) => {
@@ -9,6 +9,7 @@ export const devFlagMiddleware = (req: CustomRequest, res: CustomResponse, next:
     }
     next();
   } catch (err) {
+    logger.error("Error occurred in devFlagMiddleware:", err.message);
     next(err);
   }
 };
diff --git a/middlewares/validators/subscription.ts b/middlewares/validators/subscription.ts
index 4ac12576f..7a3ebcfdf 100644
--- a/middlewares/validators/subscription.ts
+++ b/middlewares/validators/subscription.ts
@@ -1,11 +1,18 @@
 import { NextFunction } from "express";
 import { CustomRequest, CustomResponse } from "../../types/global";
-import { emailRegex } from "../../constants/subscription-validator"; 
+import { emailRegex, phoneNumberRegex } from "../../constants/subscription-validator"; // Removed phoneNumberRegex import
 import Joi from 'joi';
 
 export const validateSubscribe = (req: CustomRequest, res: CustomResponse, next: NextFunction) => {
+  
+    if(req.body.email){
+      req.body.email = req.body.email.trim();
+    }
+     if (req.body.phoneNumber) {
+       req.body.phoneNumber = req.body.phoneNumber.trim();
+     }
   const subscribeSchema = Joi.object({
-    phoneNumber: Joi.string().allow('').optional(), 
+    phoneNumber: Joi.string().allow('').optional().regex(phoneNumberRegex), 
     email: Joi.string().required().regex(emailRegex)
   });
   const { error } = subscribeSchema.validate(req.body);
diff --git a/test/unit/middlewares/subscription-validator.test.js b/test/unit/middlewares/subscription-validator.test.js
index 8a2c5c79e..74d2ed9df 100644
--- a/test/unit/middlewares/subscription-validator.test.js
+++ b/test/unit/middlewares/subscription-validator.test.js
@@ -20,7 +20,7 @@ describe("Middleware | Validators | Subscription", function () {
       email: "test@example.com",
     };
 
-    await validateSubscribe(req, res, nextSpy);
+    validateSubscribe(req, res, nextSpy);
 
     expect(nextSpy.calledOnce).to.be.equal(true);
     expect(res.status.called).to.be.equal(false);
@@ -32,7 +32,7 @@ describe("Middleware | Validators | Subscription", function () {
       email: "test@example.com",
     };
 
-    await validateSubscribe(req, res, nextSpy);
+    validateSubscribe(req, res, nextSpy);
     expect(nextSpy.calledOnce).to.be.equal(true);
     expect(res.status.called).to.be.equal(false);
     expect(res.json.called).to.be.equal(false);
@@ -43,7 +43,7 @@ describe("Middleware | Validators | Subscription", function () {
       phoneNumber: "+911234567890",
     };
 
-    await validateSubscribe(req, res, nextSpy);
+    validateSubscribe(req, res, nextSpy);
 
     expect(nextSpy.called).to.be.equal(false);
     expect(res.status.calledOnceWith(400)).to.be.equal(true);
@@ -54,7 +54,7 @@ describe("Middleware | Validators | Subscription", function () {
   it("should return a 400 error when both phoneNumber and email are missing", async function () {
     req.body = {};
 
-    await validateSubscribe(req, res, nextSpy);
+    validateSubscribe(req, res, nextSpy);
     expect(nextSpy.called).to.be.equal(false);
     expect(res.status.calledOnceWith(400)).to.be.equal(true);
     expect(res.json.calledOnce).to.be.equal(true);
@@ -67,7 +67,7 @@ describe("Middleware | Validators | Subscription", function () {
       email: "invalid-email",
     };
 
-    await validateSubscribe(req, res, nextSpy);
+    validateSubscribe(req, res, nextSpy);
 
     expect(nextSpy.called).to.be.equal(false);
     expect(res.status.calledOnceWith(400)).to.be.equal(true);
@@ -83,9 +83,39 @@ describe("Middleware | Validators | Subscription", function () {
       email: "test@example.com",
     };
 
-    await validateSubscribe(req, res, nextSpy);
+    validateSubscribe(req, res, nextSpy);
     expect(nextSpy.calledOnce).to.be.equal(true);
     expect(res.status.called).to.be.equal(false);
     expect(res.json.called).to.be.equal(false);
   });
+
+  it("should trim and validate phoneNumber if it contains leading or trailing spaces", async function () {
+    req.body = {
+      phoneNumber: "   +911234567890   ",
+      email: "test@example.com",
+    };
+
+    validateSubscribe(req, res, nextSpy);
+
+    expect(nextSpy.calledOnce).to.be.equal(true);
+    expect(res.status.called).to.be.equal(false);
+    expect(res.json.called).to.be.equal(false);
+    expect(req.body.phoneNumber).to.equal("+911234567890");
+  });
+
+  it("should return a 400 error when phoneNumber is in incorrect format", async function () {
+    req.body = {
+      phoneNumber: "invalid-number",
+      email: "test@example.com",
+    };
+
+    validateSubscribe(req, res, nextSpy);
+
+    expect(nextSpy.called).to.be.equal(false);
+    expect(res.status.calledOnceWith(400)).to.be.equal(true);
+    expect(res.json.calledOnce).to.be.equal(true);
+    expect(res.json.firstCall.args[0])
+      .to.have.property("error")
+      .that.includes('"phoneNumber" with value "invalid-number" fails to match the required pattern');
+  });
 });