Indian Overseas Bank — Money got debited from my account 2 times

I am the holder of a saving bank account number with Indian Overseas Bank.
On the midnight of March 3-4, 2022, ten thousand rupees were withdrawn from my account twice unauthorizedly from ATM, first at 03-03-22:23:55:45 and second at 04-03-22: 00:00:32 hrs: Total amount Rs.20, 000/-. I had my debit card with me all the time and I was sleeping in my house.
In the morning when I saw the messages from the bank, I informed the cyber cell of the bank and the bank branch through email and got the card closed.
But no action has been taken till date.