I would like to know about coaching classes for AIPMT and when will the applications be available for 2012?

Following is a list of some of the best coaching classes for AIPMT:
ALLEN Career Institute, Kota
Aakash Institute, New Delhi
Daswani Classes Limited, Kota
CareerPoint, Kota
Eklavya Academy, Kota
Elite Academy, Mumbai
OASIS Educational Services(OES), Delhi
Sahil Study Circle
CLC Institute, Sikar

* Above list is indicative only not exhaustive

Hope this helps.