1. If you are defaulter in loan then you will have to pay the money.
2. However if you are not in a position to pay the whole money then you can send representation to the bank.
3. Now if the bank does not agree then you can file an application u/s 17 of the SARFAESI before the DRT seeking injunction against auction.
4. However do note that at the end you ill have to pay the money which you borrowed from bank.