Sonu Walia won the Miss India contest in 1985 and in 1985 went on to compete in Miss Universe. Sonu took over from Juhi Chawla, Miss India 1984.
The charming actress did less amount of films like Khoon Bhari Maang in 1988, Apna Desh Paraye Log (1989), Mahasangram(1990), Dil Aashna Hai (1992), Sahibaan(1993), Anari Dada (1994), Jallad (1995), Yash, Kasam (2001), Suryakaant (2005), Mahadaav(1989), Nischaiy (1990), Aakarshan (1988) and Dalapathi (1990).
Sonu Walia also won the Filmfare Best Supporting Actress Award for Khoon Bhari Maang which came in 1988 also starring Rekha and Kabir Bedi. Along with Tom Alter and Shahbaz Khan she also acted in a TV serial titled Betaal Pachisi.