As per this circular of the Bar Council of India: https://www.barcouncilofindia.org/wp-content/uploads/2011/09/Press-Release-No.-23.pdf
the tentative schedule for the AIBE will be twice a year commencing from the second half of 2012 as follows:
- September / October Session
- March / April Session
More information about the next AIBE will be available shortly.