HDFC Mobile Number Registration and Update Guide
How to Register or Update Mobile Number in HDFC Bank
Your mobile number is essential for HDFC Bank OTPs, alerts, and net banking access. You can register or update your HDFC mobile number through internet banking, the HDFC Bank mobile app, ATM, or by visiting a branch. The process takes a few minutes if done online.
Method 1: Register/Update via HDFC Net Banking
- Log in to netbanking.hdfcbank.com.
- Go to Update Profile or Personal Details.
- Click Update Mobile Number.
- Enter the new mobile number and confirm.
- An OTP is sent to your existing registered mobile number for verification.
- Enter the OTP and submit. The new number is updated after verification.
Note: If you no longer have access to your old registered mobile number, you must visit the branch.
Method 2: Via HDFC Mobile Banking App
- Log in to the HDFC Bank MobileBanking app.
- Go to Profile and select Update Mobile Number.
- Enter the new mobile number.
- OTP verification is done on the existing registered number.
- Submit and the update is applied instantly.
Method 3: Via HDFC ATM
- Insert your HDFC debit card and enter PIN.
- Select More Options or Services.
- Choose Mobile Number Registration.
- Enter your new mobile number and confirm.
- Your number will be updated within 24 hours.
Method 4: Branch Visit
If you have lost access to your old registered number, visit the nearest HDFC branch with your original Aadhaar card, PAN card, and a signed account update form. The branch will verify your identity and update your mobile number within 2 working days.
Key Takeaways
- HDFC mobile number update is fastest through net banking or the mobile app.
- You need access to your existing registered number for online OTP verification.
- Lost mobile number changes must be done at the branch with identity proof.
- ATM registration updates take up to 24 hours to reflect.
- Keep your mobile number updated to ensure uninterrupted access to OTPs and alerts.
Frequently Asked Questions
Can I update HDFC mobile number without visiting the branch?
Yes, if you still have access to your current registered mobile number. OTP-based verification via net banking or mobile app allows online updates without visiting the branch.
How long does HDFC mobile number update take?
Online updates through net banking or mobile app are processed instantly or within a few hours. ATM updates take up to 24 hours. Branch updates take 2 to 3 working days.
What documents are required to update mobile number at HDFC branch?
You need original Aadhaar card, PAN card, a signed request letter, and the latest HDFC account update form available at the branch.
Will I receive an SMS confirmation after HDFC mobile number update?
Yes, HDFC Bank sends an SMS confirmation to both the old and new mobile numbers once the update is complete.
Can I register two mobile numbers for one HDFC account?
HDFC allows only one primary registered mobile number per account. This is the number used for all OTPs and SMS alerts.




