Both NMIMS Bangalore and Mumbai are good options but it's true that NMIMS Mumbai is better. It's really a tough choice between these two , however I would suggest you if you are getting a chance then don't let it go , take admission in NMIMS Bangalore because it will also be a very wise choice and the academic environment as well as placement records are very satisfactory in that campus also. So taking admission will be the right decision at this moment.

Explore more about these two campuses

https://www.careers360.com/colleges/narsee-monjee-institute-of-management-studies-bangalore

https://www.careers360.com/university/narsee-monjee-institute-of-management-studies-mumbai