In the early 2000s, Keerthy worked as a child Actress in a few of her father's productions, such as Pilots (2000), Achaneyanenikkishtam (2001) and Kuberan (2002) and some television serials. 11 years after Kuberan, she made her debut as a lead Actress in Priyadarshan's horror film Geethaanjali, in which she had a dual role. She was still studying during that time and shot for Geethanjali during her semester break. Reviews on the film and her performance were mixed, with Sify writing that she "does put in some effort but makes only a limited impression in a double role", while Rediff wrote that she "has got a plum role but whether she impresses with her acting prowess is another matter". In 2014, Keerthy had her next release Ring Master, directed by Rafi of Rafi Mecartin duo, in which she shared screen space with Dileep. She played the role of a blind girl, which she said was much more challenging than her double role in Geethanjali. The film was a commercial success, being termed a "super hit" by Sify.