Hi Saurabh.

With 98 percentile in January's JEE Mains 2020, you will surely be ale to get seats in many NITs. Your rank though might increase if more candidates appear in April's JEE Mains, but still your chances of getting an NIT are high. Your EWS category might help you get a good branch too in a middle-tier NIT if the NIT is in your Home State. You may check out this college predictor for a more detailed and accurate analysis of the colleges you can get-

All the best!