SBI — Registration of net banking without visiting the branch

I am the account holder of SBI from 2002. Debit/Atm card issued to me was Maestro which doesnt have expiry date. For registering for Netbanking without visiting the branch, the expiry date of the card is mandatory. How am I supposed to register then. For paying exam fees of my department test i have to use E-banking only. two weeks left for the last date of payment.