CAT

Hi Anindita,
As far as I know, you can receive a call and admission into FMS through regular procedure.
From your placement point of view, you would have to strengthen your skill sets and project a strong candidature to secure a good job in spite of this lag. It is up to you how you are going to defend it in placement interviews and make other good qualities/ achievements of yours overshadow the 2-year lag.

Dear student,
Prepare again for this year CAT, not only CAT but all the other entrances as well like XAT/SNAP/CMAT/IIFT
and then go for it because this decision will be having a big impact on your career, so try for premier business schools.
All the best.

Dear Kanishtha,
When you were in the final year of graduation then you became eligible to sit for the CAT exam. So, choose the right programme for your graduation and prepare yourself
All the best.

A majority of distance learning universities conduct their own examinations for MBA by distance learning. Some universities offer admission is on the basis of candidate profile and interviews only.

Target for 99 percentile. Getting 100 percentile is like hitting the bull's eye and very few people get that score every year.
http://www.rediff.com/getahead/report/career-how-to-get-100-percentile-in-cat-2016/20161103.htm
Go to above link to get tips about getting 100 percentile.

No, it is only valid for one year.

Yes, you are. Fill the form for the GD/PI process. The forms are available in the institute or else visit the site.

The chance of getting admission depends on the overall score in various section like exam marks, GD/PI, academics, extra-curricular and work experience.

You need to score around 80 percentile in CAT and XAT exam to convert IRMA. For SC, ST and OBC candidates, it is around 45 to 60 percentile.