There are various top bschools in India. Some of the top management b schools are:

IIM's

XLRI

FMS
MDI

SP Jain Institute of Management and Research, Mumbai

IIFT and more.

To get into these top colleges you will be selected on the basis of MBA entrances like CAT, MAT, XAT, SNAP, IIFT etc.

The forms for most of the exams have started. 

XAT, CMAT and MAT applications are ongoing. You can check the application dates for all management exams here and apply accordingly.

Good Luck!!