Hi Aspirant,

Hope you are doing great as per the question asked by you as per your that is 1624 A.I.R and 400 E.W.S rank getting any N.I.T or any central university is very hard as your have secured rank greater then 1000 in N.I.M.C.E.T  but you have very good chances of getting colleges like G.G.S.I.P.U and H.B.T.U so you can certainly try for them.

Hope you found this answer useful.Stay motivated stay positive.

All the best!