The Association of the Past Pupils was formally inaugurated in the year 2015 after 10 years of its inception. The Unit of the past pupils of this college is affiliated to the Provincial Level Association and is further affiliated to the National Federation which comes under the World Confederation of Past Pupils of Don Bosco with its head quarters at Rome. Don Bosco has institutions of varied nature in 22 States across India. Most of them are educational Institutions with strong and active units of Past Pupils Currently there are 139 units in India with a membership of 15724 past pupils.
The Don Bosco Sulthan Bathery Unit of Past pupils has its regular annual get-togethers which is looked up to by the past pupils as an opportunity to come together and cherish the old memories of Do Bosco College life and to chalk out activities for the year. The Salesians and the Senior staff members of the college function as their animators.