Dear student,

National Testing Agency will conduct the JEE Main 2021 in four sessions - February, March, April and May. The IIT JEE Main 2021 first session will be conducted from February 23 to 26, 2021. The registration fee for both paper 1 and paper 2 (held for admission into b.arch) examination conducted by nta is non refundable. So if you don't want to appear for the examination then you can simply not go to the examination centre. But since the fee is non refundable, this will not be a profitable choice for you therefore I'll advice you to appear for the examination and give it a try.

For more info you may visit the following link:

https://engineering.careers360.com/articles/nta-jee-main/amp