Some of my friends attended Wilson College for their BMS degree. You will get to meet people with diverse backgrounds from all over the country. The student crowd is good. As there are many extra-curricular and co-curriculer activities, you will get to work with many student and learn through interactions. This will certainly help you in your overall development. 

For pursuing a BAF degree, K.P.B Hinduja College will be better. Most of the afculties are helpful and cooperative. It also organizes many industrial visits. You will get the required exposure. 

Wilson College on the other hand doesn’t offer a BAF degree. It is well known for its BMS degree. 

For BMS, Wilson is a good option. It gives you opportunities to learn and grow. Other than decent academics the institute also offers many extra-curriculer and co-curriculer activities. Taking part in these activities will make your CV stand out. The BMS degree will help you grow holistically. Wilson College BMS placement scenario is decent. Students get internship offers from Morgan Stanly. 

For a BMM degree, both SIES Sion and Wilson College are good options. Both of these institutes have decent faculty members. You can choose either of these two institutes according to your convenience. However, you should note that the BMM fest of Wilson College, i.e. Polaris creates a lot of buzz among students. 

No, having Maths as a subject combination is not a necessary criteria to pursue BMS at Wilson College, Mumbai. I know students from non-mathematical backgrounds who are pursuing their BMS from Wilson. There are even students from Arts background. So, it doesn’t matter, if you don’t have a Mathematics background. But you should note that the BMS course includes Business Maths.