Keeping your mobile number updated with Kotak Mahindra Bank is crucial for secure, smooth, and uninterrupted banking. Your registered number ensures you receive transaction alerts, OTPs, and important notifications from the bank. Whether you prefer updating details online, through an ATM, or at your nearest branch, Kotak offers several simple and secure ways to do it. This guide explains how to complete your Kotak Bank mobile number change process easily.
Why Should You Update Your Mobile Number in Kotak Mahindra Bank?
Your registered mobile number is your link to all key banking updates. Keeping it current ensures you:
- Receive instant alerts for every transaction.
- Get OTPs for secure online payments.
- Access Kotak 811, mobile banking, and internet banking without disruption.
- Stay informed about new offers and security notifications.
- Protect your account from unauthorized access.
Methods to Change Mobile Number in Kotak Mahindra Bank
Kotak Mahindra Bank allows you to update your phone number through four convenient options — Internet Banking, Mobile App, ATM, or branch visit. Each method ensures data privacy and quick verification.
1. Kotak Bank Mobile Number Change Online (NetBanking)
If you’re comfortable banking digitally, the Kotak mobile number change online method is fast and hassle-free.
Steps:
- Visit the Kotak Mahindra Bank NetBanking portal.
- Log in using your Customer ID and password.
- Go to the “Profile” or “Services” section.
- Select “Update Mobile Number”.
- Enter your new mobile number and confirm it.
- Authenticate using the OTP sent to your current number.
- Submit the request and wait for confirmation.
✅ Processing Time: Usually instant to 24 hours.
✅ Charges: Free of cost.
2. Kotak Mahindra Bank Mobile Number Change through Mobile App
You can also update your registered number through the Kotak Mobile Banking App or Kotak 811 app.
Steps:
- Open the Kotak Mobile Banking App.
- Log in with your credentials.
- Tap on “Profile” → “Update Contact Details”.
- Choose “Change Mobile Number”.
- Enter your new number and verify via OTP.
- You’ll receive an SMS confirmation once the number is updated.
3. Kotak Mahindra Bank Number Change via ATM
The Kotak Bank ATM method is ideal for quick updates when you’re on the go.
Steps:
- Visit any Kotak Mahindra Bank ATM.
- Insert your debit card and enter your PIN.
- Choose “Registration Services” → “Mobile Number Registration”.
- Enter your new mobile number.
- Reconfirm and submit the request.
- You’ll receive a confirmation SMS on both your old and new numbers.
✅ Processing Time: Immediate to 24 hours.
4. Change Mobile Number by Visiting a Kotak Branch
If you prefer in-person assistance, you can visit your home branch to update your mobile number.
Steps:
- Visit the nearest Kotak Mahindra Bank branch.
- Ask for the mobile number change request form.
- Fill in your account details, old and new numbers, and signature.
- Attach a self-attested copy of your Aadhaar, PAN, or Passport.
- Submit the form to the bank official.
- You’ll receive an SMS once the change is complete.
✅ Processing Time: 1–3 working days.
Kotak Mahindra Bank Mobile Number Change Form
When updating your number at a branch, you’ll need to complete the Kotak Bank mobile number change form.
Details required:
- Full name, account number, and branch details
- Current and new mobile numbers
- Declaration and signature (as per bank records)
- Copy of ID proof
This ensures secure verification before the change is processed.
How to Check Kotak Mahindra Bank Mobile Number Update Status
Once you’ve submitted your request, it’s important to confirm that your new number is active. You can check the status through multiple options.
Method 1: Online Banking
- Log in to Kotak NetBanking.
- Go to “Service Requests” → “Request Status.”
- Select your mobile number update request to view progress.
Method 2: Kotak Mobile App
- Open the app and log in.
- Go to “Service Requests” → “Pending Requests.”
- View the current status of your update.
Method 3: Customer Care
Call Kotak’s helpline at 1860 266 2666 with your account and reference number.
Documents Required for Kotak Mobile Number Change
For Branch Updates:
- Completed Kotak Mahindra Bank mobile number change form
- Valid ID proof (Aadhaar, PAN, Passport, etc.)
- Recent passport-size photo
- Account details or passbook
For Online Updates:
- NetBanking credentials
- Registered email ID
- OTP verification on current mobile
Time Required for Kotak Mahindra Bank Number Change
| Method | Estimated Processing Time |
| Online / Mobile App | Instant – 24 hours |
| ATM | Immediate – 24 hours |
| Branch Visit | 1–3 working days |
Benefits of Updating Your Mobile Number in Kotak Bank
- Enhanced Security: Receive real-time alerts for every debit or credit.
- Seamless Digital Banking: Enjoy uninterrupted access to online and mobile banking.
- Safe Transactions: Complete OTP-based authorizations securely.
- Account Awareness: Stay informed about all activity on your account.
- Regulatory Compliance: Ensure KYC details remain current.
What Happens If You Don’t Update Your Mobile Number?
Neglecting to update your contact number can lead to:
- Restricted access to Kotak 811 and digital banking services.
- Missing OTPs for transactions and payments.
- Delay in receiving security or service alerts.
- Higher risk of unmonitored fraudulent activity.
Final Word
Keeping your mobile number updated with Kotak Mahindra Bank is one of the simplest yet most important steps for secure banking. Whether you use NetBanking, Mobile App, ATM, or visit a branch, the process is quick, free, and ensures your account remains fully accessible.
Don’t wait until you miss a critical alert — complete your Kotak mobile number change online today and bank with confidence.
Frequently Asked Questions (FAQs)
Yes, you can update your mobile number using Kotak’s NetBanking or Mobile App with OTP verification.
No, Kotak Mahindra Bank does not charge any fee for updating your number through any channel.
Online and ATM updates are usually instant, while branch requests may take up to three working days.
No, Kotak 811 and regular accounts share the same mobile number registration. Updating one automatically updates both.
If your request isn’t processed, contact Kotak Customer Care (1860 266 2666) or visit your branch with ID proof for assistance.