I never thought it could be so easy to get an used car shipped from USA to India.
Check this site http://www.exporttrader.com
Well, first things first - you need to convert the driving side from left to right, thats it! And the dashboard items also move along.
I am told by a friend that his 1996 Accord shipment cost him 3500$ or so other than the cost his vehicle and conversion. Very cheap compared to what it costs to import a brand new car. But beware, you need to ensure that the emission standards and road worthiness certificates are got.
But last and not the least, you should always ensure that the current petrol gets the best of the car. (unleaded).