Ek Hasina Thi Watch Online is an upcoming Indian television thriller drama series, to be aired on Star Plus channel from 14 April 2014 every Mon-Sat at 8:00PM. Produced by Prem Krishen of Cinevistaas Limited, it stars Sanjeeda Sheikh and Vatsal Seth in the lead roles. The show was originally titled Daag, but later the producers thought Ek Hasina Thi would be more appropriate. The show is based in Kolkata, but is filmed in Mumbai.

Set in the eastern megalopolis of Kolkata, Ek Hasina Thi tracks the journey of a woman Durga, who has decided to become an active agent of change to achieve her motive of justice. Durga is not only rich, brave, focused with a heart of gold but is also strong, powerful, calculating and manipulative, using her intelligence to stay a step ahead of her adversaries. She doesn’t mind stepping over the boundaries of ‘right’ and flirt with the dark side, but she always remains within the confines of good, never losing touch with her humanity. However, Durga’s fight is not easy as facing her are the extremely powerful and influential Goenka family – the main antagonists and the target of Durga’s actions.

Shaurya Goenka is the rich, womanizing scion of the Goenka clan. A playboy and brat who is not used to hearing the word no, Shaurya knows that with his family’s influence, he can get away with anything. Standing by Shaurya through thick and thin are his parents – Sakshi and Rajnath Goenka, whose financial muscle and stronghold over the city automatically make them both a revered and feared opponent. Durga’s task is further complicated when she faces multiple hurdles as relationships, romance and her own emotional conflicts play a role in making her question her actions.