Thats O.K. as long as he is giving you the C.C., getting a C.C. is half an hour Job but you know how the government offices work. Once you get the C.C. take a copy of that C.C. and cross verify with any broker of that R.T.O, let the original be with the dealer. once you get a clean chit, go to the dealer and pay the amount and get the car.
dealers wont pass on the no of the owner because its his commision thats at stake if you directly deal with the owner, hence the suspense.
if you really want to speak to the owner ask the dealer to give you the copy of the papers and on the insurance policy paper you will have the owners Mobile or telephone No.
But please let the poor sales guy get his commission, i was in the same line of business so i know how much that guy needs the commission.