Hello,

From you question i can understand that you are asking about admission in government college for M.Tech course.

You will need to appear for gate exam in your preferred branch to get admission in a government college. It does not matter in which branch you have done your B.Tech you can just apply for GATE in bramch you want to pursue M.Tech.

There are less number of seats in M.Tech program in most of colleges so you need to score good marks.