Preparation for ISM and IIM and for business schools in abroad is really a challenging one and needs lot of practice and concentration.
First study the format for each exams, then plan according to that.
Secondly, go to libraries read many books, quote useful things. Collect all the news regarding current affairs same way recollect all in your mind.
For aptitude test try out more sums, work on and on...by managing time.
Discuss with your friends, have debate etc.. Now be relaxed and get ready for the exams, group discussion and personal interviews.
Hi friend, given here are some main points to be remembered in a group discussion and to be a winner.

1. Body language.
2. Thinking a few minutes before starting of a GD.
3. Don't feel anyone is better than you.
4. Don't mix your personal emotions in GD.
5. Continues with your ideas. Don't let it down when any body try to stop in chaos period.
6. Select a different point of view; stronger one that attracts other eyes and idea.
7. Never blame anyone there. Don't talk to one person talk to all of them so that there is a pleasing atmosphere.
8. Lend your ears to every one's point of view and timely attack them considering all.
9. Speak slowly and confidently.
10. Never contradict yourself.
11. Never conclude the topic, until it is asked to do so.
12. Fight for speaking, snatch chances.
13. Be precise and have a strong point to speak.
Preparation for exam is more important and only if we score high we can get courses needed from the best college. Study hard for exam and try to give the best...