Typically, the seller is not required to be present in Person at the RTO Office for transfer of vehicle. However, where the Signatures mismatch or the case seems doubtful - the Seller is also called to be present in RTO Office with ID Proof along with Buyer for Verification Purpose, to avoid any fraudulent/ stolen/ID theft Transfer.
Ideally, it shouldn’t take more than 2 weeks for the entire transfer of ownership but it largely varies from RTO to RTO which can stretch up to 45 days as well. As a matter of caution, the seller can submit Form TCR vehicle along with Copy of ID & Address Proof of Buyer within 2 Weeks. The same acts like a transfer intimation to RTO Office after sale of vehicle.
Passport/Ration Card/Electricity Bill should be fine, if the buyer’s name and address is there. If you’re having only rented home agreement, you need an affidavit on 20Rs stamp paper from Notary + Letter from your company HR to RTO stating your residential address. Please note that Standalone Rent Agreement, Credit Card Statement, Private Bank Statement, Appointment Letter of Private Company, Landline bill - are not considered address proof for effecting transfer in name of buyer
If the car you’re about to buy has an outstanding loan, the process will also include hypothecation cancellation. The seller will need to take an NOC aka hypothecation cancellation certificate (Form 35) from his bank/financier and submit the same along with other required documents at the buyer’s RTO.
More often than not, the original RTO of seller might be different from what registration number suggests. The original RTO can be ascertained at the right corner on the backside of the RC card. The RTO division is usually mentioned within braces.
In case of non-transport vehicles like two wheelers and cars, the registration certificate is valid for 15 years from the date of first registration, and it is renewed after every five subsequent years.