Hello

Greetings

Your Rank as Per Current Percentile is 144287  which is All India Rank

Your Rank would change Either Your Percentile Score is Increases in the next attempt or Number of Student increases in the Next attempt, If the Number of Student Increases to 1400000 and Your percentile remains same then Your New rank would be 231000 All India Rank

Since We Do Not have exact Data of all the OBC candidate the It is Not possible as of Now to Predict Your OBC rank.

If Your Percentile Score Increases in the Next attempt Then Your Rank would Be calculated By the Following Formula

(100 - your total percentile score (Higher of two)) X Student appeared in JEE Main/100

Hope this Helps All the Best