IIM Ahmedabad - Indian Institute of Management

Its 99%, nothing less than that.

Dear balaji. all specializations are important. but in MBA choose specialisation based on your background.like., if you are B.Com better go for finance spl. because you will be elevated excellently based on your awareness in that area. coming to HR , marketing ,its your interest to excel in that particular domains. anyway based on your nature and attitude try to choose specialisation and work on it extensively.

How many years of work experience do you have? It ask for average 5 years of work experience and for an executive MBA. However, you can look for other specialised courses rather than MBA. It depends on your interest. Since I have seen a few students who opted for such specialised courses like MS in public policy or international relations or affairs after graduating from IIMs and having hands on experience.

Yes, it is. The Rajiv being that IIMs don't consist only CAT scores for admission, they also look at your profile, which includes tenth and twelfth marks, work experience, etc.
Even the leads to only an interview call, post which you need to Crack the interview and HD (if there)

around 15-16 lakh per/annum

You try to explore your job opportunities with your MCA, as it is a good qualification. You can try for MBA, after joining job.

Students after completing graduation can immediately join PGDM program of IIM – Ahmadabad, if they get admission. So, don't worry about work experience. All you need is to perform in PGDM program and then interviews of companies coming to campus. If you perform, nothing else you should get worried about.
I hope it helps.

I don't think that you will get admission on this profile and CAT score. If you're from any reserved category then it might be possible otherwise NO.