Indian Army — fraud of 28000 from my bank account in the card to card money transfer

Address:

Bangalore, Karnataka, 560068

I posted an add on olx to sell my car. The person (Parveen kumar) called me and said he is interested to purchase car. So he said he making payment of 20000 as an advance amount in my account and said he will do card to card transaction. He asked me my debit card details then while having chat over the phone and whatsapp, he gave the name of indian army (Working as cisf solider at bangalore airport). Then by his army words he asked me otp's and withdrawn 28000 thousands from my account through paytm. After knowing that money is deducted from my account he said he returning back my money to my bank account in fews hours.
But then he blocked me from whatsapp and from phone, also he turned off his numbers i'm also having call recording.
Details of that person-
Name - parveen kumar
Army card no. - la[protected]a00
Aadhar no.- [protected]
Mobile no.- +[protected], +[protected].
Please help me to get my money back and take an strict action against him.