Hi kethavath . Congratulations for your score in jee mains 2020 and coming to your questions as we all know the cutoff for jee mains for st category Student was 39 percntile and you had score way better thean that so it assured you that you can get into any promising national institute of technology . So as now you are applicable to apply in most nits i would suggest you to go for computer science branch in National institute of technology warangal  or national institute of Allahabad even you can go for national institute of technology bhopal . Well for more details on the nits you can get you can use our college predictor .

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