Hello Aspirant,

See If we go through the analysis of marks Vs Percentile Vs rank for JEE-Main 2021 then according to the percentile mentioned by you in the question your ST rank is expected to be in the range of 500-1000 .

Note that the ST rank which is predicted is only the expected rank on the basis of previous year's data so your actual rank might vary depending upon current factors.

Based on such category rank you can go for:-

Dr. B R Ambedkar National Institute of Technology, Jalandhar - Computer Science and Engineering

Maulana Azad National Institute of Technology Bhopal - Civil Engineering

Motilal Nehru National Institute of Technology Allahabad - Civil Engineering

To have a list of all those colleges which you can get based upon your JEE-Main rank or score you can use JEE-Main College Predictor:-

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

I hope this information helps you.

Good Luck!!