Tamil Nadu

GLIM PGPM is an intensive one year program. It offers good courses but time is the most important factor when it comes to learning. If you are an ardent learner the go ahead with GLIM. Placements are good.
However if you want to learn MBA covering all aspects of the course along with internship and the regularities of a B school then go for a 2 year program. It offers a better learning. Placements are good at IMT with huge alumni base.
Choice is yours.

ITM-Mumbai is better. You can look for other colleges in Chennai like Great Lakes, Loyola Institute Of Business Management, Institute For Financial Management and Research.

You have following options:
1. PSG College, Coimbatore
2. COE, Anna University, Guindy
3. VIT, Vellore
4. SRM

VIT is in top 20 engineering colleges of India. If you are able to get VIT after dropping a year then its worth a try option.

Hi Prajwal,
Thiagarajar School of Management has received the highest salary package of Rs.14 LPA last year. Whereas, the salary package offered at IBA was Rs.12 LPA last year.
All the best.

The reviews of the institute are good. Therefore, you can take admission in the same.

I think, Alliance is a good option.

Hi Prem,
Here is the list of colleges offering Bachelors of Science in Tamil Nadu:
https://engineering.shiksha.com/bsc-colleges-in-tamil-nadu-categorypage-2-64-1-0-0-1-123-2-0-none-1-0
You may sort and filter as per your convenience and requirements.
All the best.

Welingkar Mumbai is the best among these followed by Welingkar Bangalore. Its a good B-Schools and have a very good brand name.