Hi, so basically as per your question i'm assuming it took you 5 years to complete your graduation, fine no problem.

The basic criteria for MCA in any college is that you should be a BCA, BSC CS etc graduate.

I'm hoping you are from a CS background, if not then it could be a little difficult for you to apply for MCA program.

If you are then its cool you can definitely pursue MCA.

So basically for the admission in JNU you have to clear their entrance exam for MCA which they conduct every year.

and as per the IGNOU MCA, there is no entrance exam you can just simply fill out their online application and continue with the process. And you will get admitted if you meet their eligibility criteria.

Same is with JNU MCA, you have to fill an online application and the test data will be provided later.

So you have to clear the exam and then you will be admitted there.

Hope this is helpful.