Exam

In india, the admission for doctoral programmes hv different criteria as per the qualification. Take a look at IIM requirement here.
http://www.iimahd.ernet.in/programmes/fpm/how-to-apply/eligibility-criteria.html

on the basis on your inter board percentage it will decide

You are eligible to write CAT only in the final year of your Bachelor's or after completion as the score is valid only for a year unlike international exams like SAT, GMAT etc.

I have studied abroad for my Bachelors degree and it was and is extremely expensive. Your living expenses are INR 10 lakhs per year and the tuition fee is minimum INR 10 lakhs per year. If you want to study HSC Year 12, you would have repeat 2-3 years. Hence I strongly recommend that you finish your

There is no direct answer to this question. However, assuming that you want to join established IIMs, there are around 2400-2500 seats for all the IIMs combined. Also assuming that around 2.5 lakh students appear for CAT. You would stand a chance to figure in top 2500 students only if you score more

I think u can't get any college.

I think u can't get CS branch in these college s.

u can join the NIT's