A LL.B graduate from the University of Calcutta, Ishaa Saha made her acting debut in the 2017 romantic comedy Projapoti Biskut, co-starring Kheya Chattopadhyay and Aditya Sengupta. She is associated with the 2018 Bengali thriller drama Guptodhoner Sondhane directed by Dhrubo Banerjee. Her 2019 releases include Durgeshgorer Guptodhon and Buro Sadhu.