She was heroine of the first ever released Pakistani film Teri Yaad in 1948. She was not successful in leading roles and appeared only in fours movies as first heroine. Ghalt Fehmi (1949), Shola (1952) and Sudhir's first Punjabi film Bulbul (1955) were other movies in this list. She got fame in side roles, especially in comic roles with Nazar in Pattan (1955) and with Asif Jah in Dullah Bhatti (1956) and Sheikh Chilli (1958). She was vamp or side heroine in movies like Sassi (1954), Ishq-e-Laila and Intezar and Guddi Gudda (1956) etc.
Asha Poslay started her career as supporting actress before partition in Lahore made Punjabi film Gawandi (1942). She was in main role in film Champa (1945). Kamli (1946) was her first film as solo heroine. She appeared in 129 films, 76 Urdu and 53 Punjabi films. Her last film was Insaf (1986). She also appeared on Stage, TV and Radio and she was also a part-time singer.
Asha Poslay's real name was Sabira Begum and she got the film name Asha Poslay from music director Master Ghulam Haidar. She was born in Patiala in 1927 and she was daughter of music director Nath (Inayat Ali) who was also the music director of first Pakistani film Teri Yaad. Famous singer Kousar Parveen, actress Rani Kiran and Tv actress Najma Begum were her sisters.
Asha Poslay died on March 26, 1998 at Lahore.