Percentile = (100 )(No. of students below you)/(total students)

From this, you can calculate your rank in only 1st mains but not in aggregate

Rank = ( No. of students)(100-87.24)/(100)

approximately = 1,15,000

Hello,

The exact rank cannot be predicted but we can use the below formula to find your approximated rank

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

so your approximated rank will be around  110885.

Dear aspirant,

Your rank will be close to 1.6 lakh in the rank list.

Here are some links for you.

https://engineering.careers360.com/articles/how-prepare-for-jee-main

https://engineering.careers360.com/articles/jee-main-preparation-tips

Hope this helps. Thank you.