Other exam preparations can be possible while pursuing studies at PUMBA. But time availability depends on the curriculum and day-to-day activity of a student.
The time dedicated to studying for other exams depends on one’s ability and perseverance to crack the exam, but a student can easily take out 2-3 hours from their day's time to prepare for other exams.
PUMBA and Indira Institute of Management both offer post-graduation courses. The number of courses offered by PUMBA is more than the latter.
Indira Institute of Management offers a PGDM course in two specializations: Marketing and Finance.
PUMBA offers a few more courses other than those offered by the Indira Institute of Management. The other courses it offers are Ph.D., Executive MBA, and MBA in Pharma Biotech.
Thus, one can make assumptions based on these statistics.