Daiict minimum percentage criteria to apply is not officially mentioned. It takes admission for Btech through Jee Mains.  And to apply in Jee Mains, For admissions to NITs/ IIITs/ GFTIs, you should have secured at least 75% marks in class 12th exam or be in the top 20 percentile in the class 12th exam. If from reserved category, the eligibility criteria is 65% marks in class 12th. But because you have less percentage then you can apply in state level colleges through Jee Mains. 

Good Luck.