Airtel — fraud transactions placed by unknown person using debit card

Address:

600042

On 3rd july, 2018 i got a call from [protected] stating he is calling from sbi and said my debit card is going to expire so he wanted the details to renew it. Out of curiosity i gave the number and after some time i again got a call from him asking for otp to complete the process. By the time i could realize it's a fraud rs. 42880/- was withdrawn from my account in 8 different transactions.
The transactions done were to airtel money, oxigen wallet, ola cabs and yes bank. I blocked my card immediately after i say unusual activity in my account.
I rarely use debit card since this account is for my sip and fd’s investments. We tried to call the numbers we received but they pick up the phone and say they didn't take money from our account.
Request you to investigate this matter and help me get back my hard-earned money and give proper punishment to whosoever did this. Also, i am getting calls since this morning from the same person asking to give my mother's debit card details for renewing it.
Date when fraud happened: 03-jul-2018
Fraud transaction details:
Airtel money – rs. 9898/- reference number: [protected]
Airtel money – rs. 14989/- reference number: [protected]
Oxigen wallet – rs. 3999/- reference number:[protected]
Oxigen wallet – rs. 3999/- reference number:[protected]
Ola cabs – rs. 5000/- reference number:[protected]
Ola cabs – rs. 1999/- reference number:[protected]
Ola cabs – rs. 1999/- reference number:[protected]
Yes bank – rs. 999/- reference number:[protected]
Fraud person details:
Mobile numbers:
[protected]
[protected]
[protected]
[protected]

Request you help us get back the amount.