Indian Overseas Bank — debit the incorrect amount

Address:	110054
Website:	Indian overseas bank

This is to inform that i've a saving account with iob bank st. Stephens hospital branch. I deposited 1000rs here at the time of opening account. As i the account non operative then only my lpg subsidy credited into it. Now i come to see to close the account and i got to know that i only have 500rs here in the account bank debited all the rest of my balance however they didn't provide any atm, or cheque or net banking for this account. I didn't even use this account they only wanted to keep 1000rs in this account which i mentained. Please help me out to get my money back.
Regards
Shailender singh
Account number : [protected]