Since boyhood, Brojen practised swimming in
Buriganga River. After his own initiative, the East Pakistan Sports Federation introduced an annual swimming competition in Dhaka in 1953. He was invited to take part in the English Channel Swimming Competition in 1958. As a part of his training, he swam in the
Shitalakshya River, in the lower
Meghna River, and a distance of 46 miles starting from
Narayanganj to
Chandpur. Prior to the competition, he also swam in the
Mediterranean Sea from
Capri to
Naples. At midnight on 18 August 1958, Brojen began swimming to cross the
English Channel along with other competitors from 23 countries. He completed the course on the next day after noon. Brojen crossed the English Channel a total of 6 times from 1958 to 1961. == Achievements ==