See an exact estimate for your rank cannot be given due to various variable factors like number of candidates, difficulty and categorical rank, your percentile will be above 80 for sure, for further information do check out the following website:

Dear Aspirant!

Hope you are doing well! Seeing the difficulty level you will get around 82 percentile in that shift .

Further information is attached with the link ;-

https://engineering.careers360.com/articles/jee-mains-2025-january-22-shift-1-question-paper-and-solution

With 70 marks in JEE Mains 2025 (22 January Shift 2) under the OBC category, your expected percentile could range between 80-85 depending on the exam's difficulty level and overall performance of candidates. Check the official NTA percentile calculator for a more accurate estimate.

Hello

If you scored 270 marks in JEE Mains 2025 (22nd January shift) as an OBC candidate, your expected percentile should be around 99.9+ percentile, possibly between 99.95 - 99.99 percentile.

This is based on previous years trends, where a score of 270+  places candidates in the top 500-1000 ranks overall. Since percentiles are calculated based on relative performance, your exact percentile may vary slightly depending on the difficulty level of your shift.

hope this helps you .