Apart from acting in films, she is also a regular presence in theatre productions in India.
Koechlin was married to filmmaker Anurag Kashyap from 2011 to 2015.
After completing her schooling at the age of 18, she moved to London and studied drama and theatre at Goldsmiths, University of London.
Drawn to theatre at a young age, Koechlin studied drama at Goldsmiths, University of London, and worked simultaneously with a local theatre company.
After returning to India, she made her screen debut in the drama Dev.
In addition to her film career, Koechlin has written, produced, and acted in several stage plays in India.