Dealers in Chennai don't encourage the Temp Registration if the vehicle is bought and to be registered in Chennai itself. The cost of registration is very high in Tamilnadu including the cost for Temp Registration. That said, dealer's generally don't deliver the vehicle before the registration process. I am absolutely fine with all these process. But, what is puzzling here is that why on earth do they need 3 days to do the registration? The registration process in Tamilnadu has become online now. Dealers will fill the forms online, take printouts, will get stamping from the financiers as well and then they take the vehicle for the registration.