i have got 91 percentiles in jee mains 2021 and im obc candidate can I got admission in mnit jaipur

Dear student,
Yes, you can get admission in mnit Jaipur but in the lower branches such as:

• Chemical engineering
• Metallurgy and materials engineering

If your goal is to just get into mnit Jaipur without any preference of branches then you can get into it according to the previous years cut off. However you still have more attempts for jee mains,  you can try harder this time and increase your score.
You rank at this percentile would be around 30,000- 35,000 and to know which more colleges you can get into, you can use our college predictor tool:
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer