Is NMIMS Bangalore or MDI Murshidabad better for Marketing PGDM?

No way MDI Murshidabad is better than NMIMS, although the Murshidabad campus is a subsidiary of MDI Gurgaon campus, NMIMS is better for marketing courses. 

The median salary for NMIMS is more than MDI Murshidabad, the batch intake of NMIMS is also more than MDI, and NMIMS has better faculties than MDI. The campus and cultural life of NMIMS is better as it is a well-established institute, so you could opt for NM.