i have got AIR-2499 (general) , score-373 and marks-37.67 in Instrumentation(IN). Will i get any iit or nit?
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Since you have not mentioned the category so considering it as General.
If we go through the analysis of previous year's GATE score Vs College allotment than according to the GATE 2021 score mentioned by you in the query you have very less or almost no chances of getting any of the IITs or NITs because their cut-offs are somewhere around 500-550 marks for General category so I would recommend you to go with some private colleges in states like Andhra Pradesh , Telangana and some others because some private colleges also accept admission on the basis of GATE score.
You can check out previous year's cut-offs from the link given below :-
Note that the above prediction is made on the basis of latest cut-offs and the cut-offs are bound to change every year depending upon various factors such as the number of candidates appearing in an examination, the number of candidates qualifying an examination, difficulty level of the paper, and so on.
To have a list of all those colleges which you can get based upon your GATE 2021 Score and category you can use GATE College Predictor :-
I hope this information helps you.