hello insan
based on your jee mains rank and last year trends you can definitely get a govt college:
for cse,it,ece you should try north east nits, new iiits and some gftis
https://engineering.careers360.com/articles/list-of-indian-institutes-of-information-technology-iiits
in nit you can get lower branch such as
metallurgy in nit bhopal,biochemical,food ,ceramic at nit rourkela,lower branch in nit raipur
best of luck
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