Both Mithibai College and NM College are reputed colleges in Mumbai for their BMS programme. However, when it comes to faculty and teaching quality, it would be best to research and compare the individual faculty members of both colleges before making a decision. You may try to check the official websites of both colleges to get more information about the faculty members and their qualifications, as well as the teaching methodologies used in the BMS programme. Additionally, you may also try to reach out to current or former students of both colleges to get their feedback and insights about the faculty and teaching quality.