Karim Shadiness composed music in his first film Ye Bi El Kania in 1964. His all time best musical film was Chan air Chanda in 1968. Most of songs from this film got immense popularity, especially, "Teri Yaad Aa Geyi.." sung by Masood Rana.
Karim Shahabuddin was born in a business family in Mumbai (Bombay). He was influenced by some great Indian music directors. He was associated to Pakistan Television Karachi and Lahore channels.