Hello student no its not too late actually its never too late once you decide you to do something thats the perfect time.
Mtech eligibility Minimum CPI of 6.0 or 55% of marks in the qualifying degree/diploma as indicated below: Note: (a) All regular category candidates (except those having BTech/BDes degrees from an IIT with a minimum CPI of 7.0) must possess a valid score of all India Common Entrance Examination for Design (CEED)

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Good luck