Sen was born into a Bengali family in Hyderabad. Her parents are Shuber Sen, a former Indian Air Force Wing Commander, and Subhra Sen, a jewelry designer and owner of a Dubai-based store. She has two siblings, a sister named Neelam and a brother named Rajeev. She has attended Air Force Golden Jubilee Institute in New Delhi and St. Ann's High School in Secunderabad, but did not pursue higher education