how i can get in a M.TECH prog. in any of the IIIT(triple ITs)??

you have to clear GATE exam

For IIIT-A Admission Procedure Candidate should have done B.Tech / B.E in IT / CSE / Electronics & Communications Engineering. IIIT calls a few shortlisted candidates for a written test and an interview. This short listing is done on GATE score and marks in qualifying exams. For IIT-H

IIIT Allahabad selects students through GATE and is one of the best Institute to Pursue Mtech IIIT Hyderabad also accepts GATE and on basis of GATE score students are shortlisted for their written exam .