Colombo branch renders a tremendous work for the betterment of the  college and it's future.The great network of Scientists in Colombo  consists of many more top ranking people  both in government and private  sector of Sri Lanka  which signifies the great legend produced by  Mother Science College since 1950s.
Colombo branch was inaugurated 13 years ago by collecting past  pupils around  Colombo. Colombo committee is held  at Royal Institute,  Havlock town which now has been the college for Scientists in Colombo.
Colombo branch gives the highest financial support to the college  and its activities with the support of beloved past pupils staying  around Colombo. Rathnasabhapathy scholarship, Annual Medical Camp,IT  workshop are some of the  annual projects conducted by the Colombo  Branch.
Annual Events of Colombo branch
1) Dhamma Program
2) Rathnasabhapathy Scholarship Program for College Undergraduates
3)Cricket Match with Old Thomians Colombo and Members' day
4)Annual Medical Camp
5)Family Get-together