Hi gautom. To get any IITs,NITs,IIITs,GFTIs or government college you have to appear in josaa counseling. Eligibility- you have appear in jee mains, also for students who have qualified jee mains or jee advanced can register for seat allocation. It consists of 7 rounds. You may fill in the choices of institutes and branches in decreasing order of preferences.you are free to fill as many colleges you want. Once you get the college you have to pay seat acceptance fee online.