Seed your Aadhaar number via Branch. Here's how you can link your bank account to your Aadhaar number at an HDFC Bank branch.Get the 'bank account Aadhaar linking form' from the nearest bank branch. In this comprehensive guide, I will cover everything from sample application formats to the process of submitting your request, both offline and online. If the accounts are linked to a PAN or Aadhar card, tracing out may be easier. OTP based aadhaar seeding and authentication of accounts through secure web page available as link in PNB website. The Aadhar card of the mother should not be linked to the account as she is no more and you need to request the bank to transfer the account in your name only. Know Documents And Charges.