The campus has two state-of-the-art auditoriums, both fully air-conditioned. Raththinathammal Auditorium, as the first one is called, is the oldest of the two, with a seating capacity of about 750 people. This auditorium plays host to internal student events, guest lectures and seminars, and the famed SBU Student General Body Meetings.
The Ranganathan Auditorium, the bigger of the two has a capacity for about 1,000 people and is known in music circles to have one of the finest acoustic systems in this region. The Ranganathan Auditorium hosts all major events ranging from the Annual Convocation, the Ethics Oration and Prize and Incentives Distribution Ceremonies conducting Placement Drives, Pre-Placement Talks, Workshops, Seminars, Conferences, cultural festivals, etc.
The auditoriums have played host to a huge number of eminent personalities over the years.