Hello

It would be difficult to predict the exact JEE Main rank, however, your probable rank would be around 29285.

This is the overall rank and calculation of category rank is tough.
The rank has been calculated using the rank formula mentioned below-

100 - your total percentile score is the percentage  of people ahead of you. 869010 are the number of candidates appeared for Jan exam.

So rank formula is (100 - your total score) X 869010 /100.

If the number of candidates for April exam increased to 1200000 then your final rank shall be (100 - your total score) X 1200000/100

Good Luck!