Hey,

The admission shall be based on All India Merit Rank of Mumbai University Common Management Entrance test (MUCMET) to be held on May 14th, 2020 (tentative). The application form for the course must be submitted by May 10th, 2020.
You should go to the website of the University of Mumbai, and follow the link for admission for Integrated Management Program (BMS-MBA).

You should register yourself by filling the online form available at the website. You must then take the print out of the form.
Your selection shall be based on All India Merit Rank of Mumbai University Common Management Entrance Test (MUCMET) 2020 for Integrated Management Programme.

MUCMET 2020 exam will be based on Multiple Choice of Questions

Hope this helps. 

The university opens admission window for all whe you have to fill the admission form, with all your details. Mind you, with the common form for Mumbai University, you are required to apply with each separatecollege also.