Plot synopsis: Sangam is a Pakistani Urdu film released in 1964, directed by Zahir Raihan starring Rosy Samad, Khalil, Haroon Rashid and Sumita Devi. This is the first full-length colour movie made in entire Pakistan. This was the fourth film by Zahir Raihan (1935-1972) who later went on to direct more films in Urdu and Bengali during the 1960s. Zahir Raihan became one of the most important filmmakers of East Pakistan, which later became Bangladesh in 1971. Although Sangam was an Urdu film, but most of the cast, playback artistes and crew were from the Bengali-speaking Eastern province.