He was chosen to be the music director for the South Asian Federation Games, held in Dhaka, in both 1985 and 1995, where his orchestrations were seen and heard by an estimated audience of over 500 million across the SAARC countries during the opening and closing ceremonies.
In the year of 1987 Samar Das was appointed as chief music teacher to train up the students of Bangladesh Army Military Band in Dhaka Cantonment.
He was one of the chief organizers of the Swadhin Bangla Betar Kendra, the clandestine radio station broadcast to the Mukti Bahini liberation army and the general population under Pakistani occupation.
[citation needed] Das was appointed as the Chief Musical Director of the radio station, and during this time, composed numerous patriotic songs that became immensely popular.
[citation needed] The album was released in a set of two LP discs titled Ekti Phool Ke Bachabo Bole.