It is difficult to get admission in NITs with a rank of 2lakh in jee mains 2020. But you can try for GFTIS or state government autonomous engineering institute. For which you should appear for the JoSSA councelling and other states councelling. You can have a look at the previous year cutoff of NIT Rourkela. https://engineering.careers360.com/articles/jee-main-cutoff-for-nit-rourkela/amp

As well as have a look at the previous year cutoff of different NITs.

https://engineering.careers360.com/articles/jee-main-cutoff-for-top-nits

For GFTIS previous year cutoff refer the link given below. https://engineering.careers360.com/articles/jee-main-cutoff-for-top-gftis

To know the chances of getting admission in different institutes you can use the college predictor tool for which the link is given below. https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer