See, it all boils down to what category you have. If you belong to PwD category, then definitely you can easily get a seat in Indraprastha Institute of Information Technology, Delhi or IIIT Delhi. If you belong to SC or ST category, then you chances might reduce a little, and it you are an OBC or general candidate, then you won't be getting in.

In general, if you want to take some government colleges with 75.7 percentile in JEE Main, you can get some North Eastern NITs (for reserved and home state quota) like:

NIT Mizoram
NIT Nagaland
NIT Meghalaya
NIT Arunachal Pradesh

You can also use our college predictor to see your chances in different colleges:
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hope I have answered your question. All the best!