In that case, here is what you can do:
1. If your latest address is not updated in the bank's records or if your current registered address is incomplete or incorrect, please visit your nearest branch with relevant documents and update your address.
2. You can generate net banking PIN online Click here or place a fresh request for the same after step 1, (if change in address).
Please Note: If Net Banking PIN was not delivered in second attempt also it will be returned to bank and same will be destroyed due to security reason, same PIN (package) will not be re-dispatched.