College Square Swimming Club (CSSC) was founded on 17th March 1917 by a group of seventeen people headed by Late Pramotho Nath Ghosh, at the north-east corner of the present college square tank, with the objective of imparting scientific training of swimming and development and promotion art of life-saving in water for the society. The present Club building with the tower clock was constructed in 1924 under the supervision of General Hathway, the then Chief Architect of Calcutta Municipal Corporation.
The Club has been through a glorious past continuously delivering success and moving towards a century full of splendid performances. College Square Swimming Club had produced the first Indian swimmer to participate in the Olympic Games – Late Dwarka Das Mulji in the year 1928 at Amsterdam. Apart from him many more Olympians and other International figures have been shaped by the Club.The Club has included in its curriculum novice training and Multi Gym provision in general and advanced swimming, water polo training and diving for the competitive levels.