Hi

Jee main 2021 has not finished yet, candidates still have the opportunity to apply for May session. But yes, the total number of unique candidates can be roughly expected to be around  10-12 lakh.

Also,

There's no fixed number of students that qualify jee main to be eligible for jee advanced category wise. But yes, the jee main qualifying criteria is such that a total of only around 2.5 lakh students become eligible for jee advanced examination.

For example,

Number of candidates who qualified jee main 2017 to be eligible for jee advanced is provided below:-

To help you further,

If tell you about jee main 2021 cut off then,

JEE mains 2021 expected qualifying  CUT OFF percentile to be eligible for JEE advanced  is given below for different categories on the basis of past year trends :

.                  .  JEE      MAIN CUT   OFF    PERCENTILE

Category jeemain2020 jeemain2021 expected off

General :-     90.3765335                 90-95

GEN-EWS :-  70.2435518                  70 -75

OBC-NCL :-  72.8887969                   70 -75

SC     :-           50.1760245                  50 -55

ST :-                39.0696101                  40 - 45

PwD :-            0.0618524                      1- 2

You can check the same at our page the link is provided below

https://engineering.careers360.com/articles/jee-main-cutoff

To have a personalised report on your chances of getting a college you can go through our college predictor, it will give you complete list of colleges which you can get on the basis of the category you belong to,  your home state, your gender etc, the link for  jee main college predictor is provided below

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Thank you