Hello Shekhar.

See the score u have scored in the GATE exam is one of the safest score to get any good college like NITs or IITs for pursuing ur higher studies. U can apply for many good NITs like 

NIT TRICHY

NIT ROURKELA    anr many others for pursuing ur study. U can also apply for IITs like

IIT KANPUR

IIT MADRAS

IIT DELHI.   and other good IITs for ur studies.

Hope this helped u. Ask if u are having any query.

Good luck