Hi

Yes, you can appear in IIT JAM examination even after 2-3 years of passing  your qualifying examination

This is because,

There's no cap or barrier on the number of years one remain eligible after passing the degree. Also, there is  no age limit for iit jam

So, you are eligible for IIT JAM  even after 2-3 years provided

You must have passed your qualifying degree examination with at least  50% marks in your graduation or if it is in terms of cgpa then you need to have  at least 5 CGPA out of 10 to be eligible if you belong to General / OBC category or  you must have got at least 55% in your graduation or at least 5.5 CGPA on a scale of 10 to be eligible if you belong to Sc or ST or PWD category

You can get complete eligibility criteria of IIT JAM for different courses by visiting our page the link for the same page is provided below

https://university.careers360.com/articles/jam-eligibility-criteria

I hope that you find it helpful, if you any other doubt then feel free to reach us .

Thank you