AIM - Army Institute of Management

It depends what you want, a good brand or good government college. Institute and placements should not be your first priority, goal ahead with IIT. IIT has a good brand value and it is sure fruitful. If not today, it will definitely help you once you are done with the course.

Anywhere in the Group Discussion, the topic is always a common one related to current affairs. Otherwise, there are some easy topics which are generally related to your normal reaction.

Yes, there are good chances of your selection you have to perform well in your group discussion and personal interview.
Placements are good here and worth the money. Don't worry about it.

A candidate needs to secure at least 50% marks in graduation and to appear in CAT.

100% residential programme means, even if you stay in Kolkata, it is compulsory to stay in college hostel till the completion of the course.

As per AIMK guidelines, 50 percentile is criteria for army category students and 70 percentile for general category students in CAT. But students who have scored less applies as well and in most of the cases get selected for further process, people are generally judged on the basis of GD and PI regardless of your love percentile.
Placement is usually 99% students get placed as far as current bach scenario, I won't be able to disclose the numbers as such right now but it will be available soon then you can see.

As per AIMK guidelines 50 percentile is criteria for army category students and 70 percentile for general category students in CAT but students who have scored less applies as well and in most of the cases get selected for further process. People are generally judged on the basis of GD and PI regardless of your percentile.
So I would suggest that you can go for it as the chances are equally high.