Her breakthrough performance came in Mayaanadhi (2017), where she portrayed an aspiring actress, earning her the Filmfare Award for Best Actress – Malayalam. She followed this with performances in films like Varathan (2018), Vijay Superum Pournamiyum (2019), Big Brother (2019), and Kumari (2022). In Tamil cinema, Aishwarya gained recognition with films like Gatta Kusthi (2022), Gargi (2022) and Mani Ratnam’s historical epic Ponniyin Selvan series (2022–2023), where she played Poonguzhali, a pivotal character. Her Telugu debut came with Ammu (2022), a psychological drama praised for its strong narrative.

Aishwarya’s work has earned her several accolades, including a Kerala State Film Award – Special Mention for Varathan and multiple nominations at prominent awards like SIIMA and Filmfare South