MakeMyTrip India — theft from my account

I tried to book train ticket from makemytrip but somehow it was cancelled still an amount of 3000 was debited from my respective bank account. When i called for refunding details. The person who stated himself a makemytrip worker asked me for details of bank account. After i gave him the details, he took out a sum of 25000 from my account. He is a fraud and admits himself as a mmt employee. His name is rohit kumar (According to him). His contact number is [protected]