[raj87verma88]

Well i am working on a same project right now. There are different methods of installing an electric motor to increase the output of your car. The size of your engine is fine i.e. 800cc but i suggest use the alto one. Use the gear box of Alto(5 speed). Do not purchase an old car instead fabricate the body of the car yourself. Learn ProE, AutoCAD and Ansys. Instead of ProE you can also learn CATIA or SolidWorks but ProE is best compatible with Ansys which is used for analysis of your design. Make your car a 2 seater to save expense. For such a car a 10KW motor 144 V battery will be more then enough. The same battery is being used in Honda Insight and it is the most economical Hybrid car in the world which is in mass production. Read the engineering of the hybrid cars available right now and you will get many ideas from there. I will post more replies on my progress and the steps i took. Best of luck