Can u plz tell me which are the best nits for mechanical engineering in order of preference assuming i can get the course in any nit??

u have to tell your AIR,WARANGAL,TIRICHY,SURATKAL,NAGPUR,SURAT have good name for Mech

have a look at the mechanical rankings of the colleges http://collegeranking2012.blogspot.in/

Go for NIT Surathkal...