Hello Vignesh,

Hope you are doing well.

You have been given 3 chances of JEE Mains and 2 chances of JEE Advanced . JEE Mains is conducted twice a year. So, overall 6 chances are available. If you have have accepted a seat in some IIT, then there is no worry. You can again give JEE Mains the next year. But make sure that your chances are left. And you are considering IIT then it means you also have to give JEE Advanced in the next seat. So, also make sure of JEE Advanced chances, whether they are left or not.

Hope this help will you....Good Luck!