Both are good colleges not the best i must mention. You will have an average placement around 6-10 lakhs package from either of them. If you can be the changing person who can use his skills and intelligence well, then surely things will change for you even if you are in any of the colleges. Infrastructure wise i will say maybe PIBM is better while faculty wise Chetana is a great college as per reviews.

to see the best - ranking wise, placements and ROI wise i think Sribalaji is a better option. Sribalaji(BIMM, BITM, BIIB, BIMHRD) is ranked as one of the top 11 Schools in India, and one of the top 3 B Schools in Pune by TOI B School Survey, 2019.

BIMM-Pune is probably the best university after Pumba and Symbiosis.

Best wishes. Thankyou