hi,
see at this score you have no chances for iits and have less chances in top ranked nits since the number of candidates is large compare to seat intake, this goes ever for your category, now you have decent chances in north east nits like nit sikkim, nit silchar, nit meghalaya, also you may apply for bits, jadavpur university, vit vellore, sastra university etc.
you may use careers360 college predictor tool to know about your predictable colleges,
GATE 2020 College Predictor with PSU Chances – Know your admission cha ...
Eligibility | Application | Exam Pattern | Admit Card | Preparation Tips | Books | Question Paper | Accepting Colleges
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile