Hi

First of all admission in IIT is provided through JEE advanced examination which is conducted only once in a year.

But yes to be eligible for JEE advanced you need to first qualify JEE mains which will be conducted 4 times in a year.

JEE mains 2021 will be conducted in four sessions i. e

*February session
* March session
*April session.
* May session

Students have the option to apply for one Session or more than one Session i. e 2 or 3 or all the 4 sessions together and they will have to pay the fee accordingly  . When they  apply for only one session then they always have the opportunity to  apply for rest of  the sessions later on as application Window will be reopened for rest of the session

Also,
One is free to  appear in all the four session or only in 3 sessions or only two  sessions or even  only one session , so it's entirely student's choice.

When a candidate appears in more then one  sessions then the best performance out of the  attempted sessions will be considered for admission i. e if you appear in all the 4 or 3 or 2 session of Jee mains, then your best score out of these  attempts will be considered for your  admission process .

I will suggest you to give all the sessions of jee mains , so that even if you are not able to score good marks in February session, you will get an idea of the paper pattern and what kind of questions are asked and you will get to know about your weak areas and then you can work on them and can score good marks in jee mains other sessions. Good luck for your jee preparation.

To prepare well you can go for our jee program at the convenience of your home, the link for the same is provided below

https://learn.careers360.com/knockout-jee-main-april /

Thankyou