Indian Army — Fraud through Indian army transportation

We had seen as for car on internet carwala website when we contacted the seller number he said he is from army car is in Hyderabad I'll send the vehicle to Bangalore you can see the car if you like i will send the transfer copy, he charged 3k for transportation which he said is refundable later the next a person called manjeet called saying he is from transport and we have to pay 10% of contract amount and took 16000 later he said we need to pay 19000 in one shot so we sent 19k again later he asked to pay insurance amount also so we got doubt and asked for his I'd card and when we checked we got to know they have done many fraud... Kindly help