Raihan had his directorial debut in the movie "Kokhono Asheni". This movie was made in 1960 and released in 1961. He married his first wife Sumita Devi that year. Sumita and he had two son, Bipul Raihan and Anol Raihan. In 1962, Raihan, along with Kalim Sharafi, directed the movie "Sonar Kajol". He wrote, produced and directed musical drama movie "Kancher Deyal" in 1963 and received Nigar Award for best direction for this movie. His most acclaimed novel "Hajar Bachhar Dhore" was published in 1964, for which he received Adamjee Literature Award. He made Pakistan's first colour movie, "Sangam" that year, both written and produced by him. He made his first CinemaScope movie, "Bahana", in 1965.