After starting in television projects like Devdasi , she made her feature film transition in Hemanter Pakhi (2001) .
The monologue where she confesses her love to the tree. Having convinced herself the tree responds, her smile is heartbreakingly insane. It is one of the bravest acting choices in Bengali cinema history. After starting in television projects like Devdasi ,
If Chokher Bali was a whisper, . As Meghna , a woman trapped in an abusive marriage, Swastika delivered a performance that was raw, bloody, and fearless. The unforgettable moment: her character, after enduring relentless violence, finally picks up a knife. But she doesn't attack. She holds it, looks at her own reflection in the blade, and laughs—a hollow, terrifying laugh. Critics called it "method acting at its fiercest." Swastika later said, "I didn't play Meghna. I was her for three months. I couldn't sleep." It is one of the bravest acting choices
(2014): In one of her most daring roles, she played , an actress facing a public scandal after a bold scene from her film is leaked, highlighting the industry's hypocrisy. Detective Byomkesh Bakshy! Detective Byomkesh Bakshy! Including Gandhari
Including Gandhari , Roti Kapda aur Internet , and the series Nikhoj , indicating a heavy focus on high-quality content.