Rto India — sold a car by dealer saying its validity was genuine although it's validity is over

Address:

New Delhi, Delhi

I bought a toyota sera car from a dealer in gurgaon mr varun he is a partner in a firm panther imports a plus runs a second hand car dealership. He had put ad on olx and also his facebook website. After deliberation he convinced me that the vehicle was valid to drive in any part of india.. The make and reg of the car on rc was 1999 although he must have had prior knowledge that it was it possible to renew this cars validity or fitness in delhi. I did not reside in delhi so did not have knowledge of the new rto rules for delhi cars.
After paying a part of the the decided amount he delivered the car but held back the rc. Also took back the form m citing that he would be responsible for the rc transfer as most dealers are. Since eight months he had kept the rc with some other person and says that this person mr balwant from mayur vihar is employee of national transport authority and will look into the matter. He made me than transfer thirty thousand rupees to this said person. After one month he called up my sister in gurgaon who had overseen the first meet with this dealer saying that the rc was almost complete and that he needs the remaining money right now. Than only rc will come. He took cash 2.5 lacs and said that he will return the amount once rc comes and than take check. The money is token. Being after nine in eve and banks closed plus being out of checkup leafs my sister handed over the money. Since six months he has avoided returning the money and is dodging us about the rc. He has kept the rc and form m that he signed also with some other accomplice. We have collected audio recordings of this person who says that rc is in some other state and that he will get it in few days.. Rc is with his brother who is ill etc. The car is lying in delhi and since we have no rc.. We have not dared to take it out. Kindly contact me as i am helpless as i suspect the dealer and his accomplice have done the same to many people. As of right now despite requests tneither mr varun is entertaining my calls and mr balwant is giving excuses about returning the original rc or even the mform signed by mr varun
Please contact me on [protected] or my email [protected]@yahoo.co.in and help and guide me. Should i approach the police or a lawyer or contact your delhi office in person
Yours sincerely

Siddharth