Hi Sattwic,

JEE main exam for entering in BTech course all over the nation in top IIT NIT MNIT or the Government colleges and some of the private colleges too. You can give JEE Mains 6 times that is you can give JEE in 12th twice after 12th twice and and after that year also you can give 2 times too. But JEE advance can be given twice only. For appearing in JEE Mains weather you should be in 12th or you are just clearing 12. There is no age limit for this exam the thing is only that you should I have passed class 12 or you are appearing in class 12th.

for more information related to the eligibility for appearing in this exam we can go to the link given below.

Link:- https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-eligibility-criteria/amp

For more information related to how many attempts are there for JEE you can go through the link given below.

Link :- https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-number-of-attempts/amp

I hope your question has been answered properly.

All the best for your future!