According to your percentile, your rank would fall somewhere between 245520-276000. With this kind of rank you can't get admission in any of the IITs or NITs. The cutoffs are very very high in all the NITs. You have to score minimum 92-95 percentile to be eligible for the NITs. But if still want to check your rank by yourself then please go through this link

JEE Main Rank Predictor 2021 - Predict your JEE Main ...

JEE Main Rank Predictor - Know your expected IIT JEE Main 2021 Rank by ...

To see the Opening ranks and closing ranks of all the IITs and NITs, please copy paste the below link in your browser

Still if you want to take admission this year and don't know about colleges then you can go through the below link to see the colleges according to your rank.

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