The admission to various NITs, IIITs occur using JEE Mains marks. The admitting authorities release the opening and closing ranks for each course in every college. The cut-offs depend on seat matrix, category to which you belong. The previous year cut-off may not be applicable to this year. There can be renewal. This year's seat allotment via JoSAA protocols will start only by second week of June only. Please note that EWS category was introduced this year only and has 10% quota.

You can read more as well as get previous year cut-offs by visiting https://engineering.careers360.com/articles/josaa