i am puviyarasa doing finel year diploma in mechatronics in govt polytechnic college.

i decided to perform aproject about microcontroller based automatic gear shift but i have problem about where i buy a components like soleniod valve,driver(relay),microcontroller.
exspecially about where i have to program it..

you can import such devices from china market ... or i think you can find importer in your own country...
or may be ebay help you little bit for purchasing such components