Hi Prakash,

By the recent declaration by NATA there is no age limit for attempting the JEE Main exam, if you have completed your Higher Secondary Examination or equivalent exam with 60% aggregate and 60% in Mathematics, and you must be a Indian national. If you want to study architecture you must sit for JEE Main Paper 2 again and score good to get a good college.

To know more about eligibility criteria please follow the link:-

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

Hopefully this helps.