IIM Ahmedabad - Indian Institute of Management

It's not only about good percentile to get a call from an IIM, but your previous academics as well as work experience is also taken into consideration too. For IIM A 99.95+ percentile with splendid academics from 10th, 12th and degree along with a decent work experience will do the trick. Work experience is not an eligibility criteria though preference is given to it.

You need to work regularly on your skills. Learn new words, make small calculations every day. Give lots of mock tests and quizzes with utmost discipline just like you're giving your final day test and that's all. You'll be confident and will be able to score well in the exam.

Yes, you can write CAT but I doubt your call from the old IIMs.

Admission to IIMs is via a common entrance examination called CAT. After clearing the entrance examination, based on your score, past academics and relevant work experience IIMs shortlist students for written ability test & PI where they will gauge your interest for pursuing MBA. After clearing the same, one gets admission to any of the IIMs.
Good luck!

BBA is best one if want to do MBA and you can do with B.Com or B.Sc. Now you are going to change your stream please checkout the syllabus of MBA. You will come to know what is good for you. As I know this is quite related to B.Com.
Best of luck.

Yes, you can do MBA from NMIMS through distance but always go for regular as it is more effective for placements but if you get the job then go for distance.

You have a low percentage in UG. Select for college's which keep 45% as minimum marks for UG.

Yes, there is group discussion in IIM-A for PGP students too and on the basis of this they are selected for personal interview.
Good luck!

Hi, fees structure of universities changes every year. It may cost you around 20-30 lakhs for a 2-year course in IIM Ahmedabad.
Good luck for your MBA exam.