Hello there

I think You are asking these questions because you want to know whether these colleges are worthy to be joined or not . Well sone these are NITs this have good placements .NIT meghalaya is also an old nit thus a bit more reputed. I will say you must visit ( search about) each of these colleges and search for their placements ,academic ,hostel facilities etc . These NITs are chosen less because of their location and not because of their quality .i will suggest to research more about these colleges

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Best wishes