Riya first appeared as a child artist in the film Vishkanya in 1991, where she played the role of the young Pooja Bedi. At the age of 18, she did National Film Awards winning director Bharathiraja's Tamil film, Taj Mahal (2000), which did not achieve commercial success. She was scheduled to make her Bollywood film debut in Love You Hamesha, opposite actor Akshaye Khanna; however, the film was stalled, and she finally made her debut in N. Chandra's Style in 2001. This low-budget sex comedy was the first commercial success in over a decade for the director. A launch pad for Riya, cast in the female lead along with fellow-newcomers, Sharman Joshi, Sahil Khan and Shilpi Mudgal, the film pioneered a trend of commercial success for small budget films in India. Riya and the second female lead of the film were replaced by aspirant actresses Sunali Joshi and Jaya Seal in Xc'.