Cars24 Services — rc not received after 7 months

I bought ford figo from cars24 on September 21, 2019. The car was based on petrol fuel with CNG fitted after market.I have provided all the documents required for it's RC ownership transfer.but after more than 7 months have already passed and I have not received the RC for car yet. Earlier I received the RC but CNG was not mentioned on it so I again gave this RC to my Relationship manager (Ravinder).
Kindly accelerate this process because these days we are facing lots of traffic police interceptions for not having RC and which is very bad part.
Your quick response will be very helpful for us.