CAT

It looks difficult with 80% in CAT. But, as admissions depends on relative parameters, you can be hopeful.

Yes, anyone with any form of graduate degree can appear in CAT examination. There will have to be some legal documentation that would be needed from the NDA campus where you've trained.

Greetings Raghalatha,
I must say that you got a really good score and ofcourse you are eligible for the admission in IFIM.
Please apply online and you will get a call from our admission department. You have to come for the interview and on the day first we will conduct Comprehensive ability Test, essay writing and then Personal Interview. The admission department will let you know once you get selected.
All the best

All 3 are the best colleges & among top MBA colleges.
if you select any one your future career will be safe.
As per my knowledge it is 90 percentile for CAT, it may change for CAT 2016 as per IIM, Ranchi decision.

I think, it is available in CAT website.
Arihant Publications Quantum CAT is good for quantitative section.
If you are still unknown about the CAT preparation, it is better you to go a crash course in any of the CAT coaching Institutes.

If exam center is available at Varanasi, it is possible for you. When you apply for CAT, there are set of preferences to set exam centres & try to give exam centre details in order of which is nearest to you.

Career launcher is better since TIME is not up to to the mark, now. You can opt for IMS too.

If you belong to general category, then for IIM, 99 percentile is upper and 94 percentile is the lower cut-off. For NDIM, approximately 50 percentile is required, but if you score more than 90 percentile, then opt for FMS, DU.
If you opt for FMS, DU, your salary package can be up to 5 lakh rupees.

You can opt for either Bull's Eye or TIME. Both the institutes are good for the preparation of CAT exam.