Hello

After analyzing previous yeat cut-off candidates who belong to OBC need to score minimum  150-170 marks and percentage  must be 94 or more in JEE main.See,the cut off fluctuates every year depending on the number of appearing Candidates.

To know previous year cut-off  click here

https://engineering.careers360.com/articles/jee-advanced-cutoff

you can also predict the college according to your percentile or rank in JEE in which you may have  possibility of getting a seat in JEE main 2021.

Here is the college predictor link