Sorry to disappoint you but even with obc category you need to have a rank below 25k to get admission in NITs or IIITs . Moreover getting top private colleges would also seem difficult for you. But you could get admission into other private colleges that accepts jee main score or if you want admission in government colleges only then I would suggest you to come again next year with better preparation.

You can predict what colleges you might get with this rank by going through the link of college predictor tool given below.

https://engineering.careers360.com/jee-main-college-predictor

Also as the results are announced try to give your category rank instead of percentile as it would be easy to predict colleges with your rank.

Thank you.

Hope it helps.