Learned Mr.Raju.O.F, has given his valuable advice. Please follow the advice.
ATM/Debit card allows withdrawl/usage-shopping etc., from a/c to the tune of balance in a/c only.
How the loss of card was intimated to the bank , by a letter, or on a printed format, and did you obtain the acknowledgment? Do you have the copy?
Do you have the details of the bank employee who received your complaint on loss of ATM/Debit card?
Such complaints are immediately punched in the system by the bank employee and card is hot listed,and
the intimation is issued to the customer.
You may obtain copy of the bank policy.
Moreover along with ATM/DEBIt card the user's guide is issued to the customer.Do you have the copy?
If you do not have obtain the copy from bank or from bank website.Use your rapport and obatin the inputs from some experienced bank employee and get it checked from your bank a/c card was hotlisted or not.
If you can obtain a printout, of the enteries of your bank a/c do that.
Once you have confirmed, you can raise queries thru RTI also.
Moreover in case of exceeding your limits or in case of imposition of loan/debt bank has to issue notice to the customer, and it seems you have not received any intimation.Did you change your address or phone numbers from what was in bank records?
In case of lapses bank/bank employees do not admit their fault and instead leave it to the customer to face the situation. Thease are unfair/illegal practices.
Show all of your records to your lawyer/law firm and proceed with expert advice, and collect all the informations/records using your resources.