Ishwak made his screen debut with Raanjhanaa (2013) in a small role. He expanded into films with brief roles in the 2015 films Aligarh and Tamasha and had a bigger role in the romantic drama Tum Bin II (2016). He went on to play a supporting role opposite Sonam Kapoor in the comedy Veere Di Wedding (2018). In 2019, he played the role of Aditya in Sanjay Leela Bhansali produced film Malaal which was directed by Mangesh Hadawale.