It is named Bethune College Sammilani, where ex-students, present students and ex-teachers can become members. It started as an ‘Old Students Guild’ in 1921 with encouragement from the then Principal of the College, Miss G.M. Wright.

Sammilani organizes a Foundation Day programme on 3rd September, a Vijoya Sammelan after the Pujas, a picnic in winter and a Reunion in February every year.

The Alumni has instituted Mrinalini Emmerson Memorial Lecture since 2004. The first speaker on 27th February 2004 was Prof. Akhtar Imam, an eminent alumna of this College. The second speaker on 6th April 2005 was the famous Bengali litterateur Sirshendu Mukhopadhyay.

In 2005, while the Star Theatre, Kolkata was being renovated, the Association appealed to the Mayor of Kolkata for renaming the road adjacent to the Star Theatre after Binodini Debi, the famous actress of yester years, who was blessed by Ramakrishna Paramhansa. The Mayor heeded the appeal and the road has been named Binodini Sarani.

The Association organizes an annual “Anandamela” in the Centenary Hall, which is a handicraft and food fair, for the present and past staff and students of the College. A small cultural show is held simultaneously.

There are a number of prizes donated by the Alumni Association to students of the College.

1. Mrinalini Emmerson Memorial Prize
2. Chameli Basu Memorial prize
3. Aruna Mukhopadhyay memorial prize - given to an alumna for Social service.

The Association regularly conducts drama /music workshops as well as health awareness camps for the students.