Dear Basheer,

TANCET (Tamil Nadu Common Entrance Test) is conducted for admission in MBA, MCA and M.Tech. courses. It's conducted by Anna University and the marks are considered in all the colleges that comes under Anna university.

GATE (Graduate Aptitude Test in Engineering) conducted by IIT for getting admission in M.Tech. It is a national level exam through which you can get into colleges all over India based on your marks.

Hope it helps.

Good Luck.