Her father Dibanath Sen, of Ballygunge Place, Calcutta, was the son of one of the wealthiest business men of Calcutta, Adinath Sen. Her mother, Suchitra Sen, was a popular Bengali actress who made a successful entry after marriage into Bengali films circa 1952, and then a less successful transition to the Bollywood film industry. According to unconfirmed but persistent reports in the Bengali press, her parents marriage was severely strained by her mother's success in acting.

Moon Moon was educated in Darjeeling and at Loreto House in Kolkata, then in a British school in England and graduated from Somerville College, University of Oxford. She received her masters in Comparative Literature from Jadavpur University, Kolkata. According to an interview in 2000, she taught at Ballygunge Girls' School for a year and then taught graphics at Chitrabani, a school teaching film techniques. Moon Moon taught English at a well known Boy's school in Kolkata before joining films. She was also active in social work and even thought about adopting a baby alone, before meeting and marrying her husband.

Before and after entering the film work, she appeared alone in some modelling assignments. She notably modelled for soap ads which were quite controversial in the 1980s.

Moon Moon Sen is happily married since circa 1976-1978 to Bharat Dev Varma, a member of the royal family of the erstwhile Tripura state. (Her late mother-in-law Ila Devi was the princess of Cooch Behar, whose younger sister Gayatri Devi is the Maharani of Jaipur.) In an interview in 2000, the actress speaks highly of her husband, and his consistent support of her professional endeavours.

Moon Moon and Bharat Dev Varma have two daughters Raima and Riya who are established models and actresses in their own right.


FILMOGRAPHY :

It Was Raining That Night (2005)
Bow Barracks Forever (2004)
Taj Mahal: A Monument of Love (2003)
Love at Times Square (2003)
Nil Nirjane (2003)
Kucch To Hai (2003)
12B (2001)
Zakhmi Dil (1994)
Zakhmi Rooh (1993)
Hirer Angti (1992)
Waqt Ka Badshah (1992)
Vishkanya (1991)
Iraada (1991)
100 Days (1991)
Bahaar Aane Tak (1990)
Jeevan Ek Sangharsh (1990)
Lekin (1990)
Pathar Ke Insan (1990)
Apna Desh Paraye Log (1989)
Ek Din Achanak (1989)
Tere Bina Kya Jeena (1989)
Mil Gayee Manzil Mujhe (1989)
Be Lagaam (1988)
Woh Phir Aayegi (1988)
Maashuka (1987)
Amar Kantak (1987)
Dance Dance (1987)
Majnu (1987)
Pyaar Ki Jeet (1987)
Sheesha (1986)
Jaal (1986)
Mohabbat Ki Kasam (1986)
Musafir (1986)
Sirivennela (1986)
Andar Baahar (1984)
Chorus (1974)