She started as an actress in the Bengali film industry based in Kolkata's Tollygunge since 1938. Her first role was as a child artiste when she was six years old in Ahutee directed by Dhiren Ganguly.

She has been associated with All India Radio since 1954, and enacted character roles in radio plays. However, her last play was Badsahi Chaal (1996), which was directed by Ganesh Mukherjee, and was staged at the Rangana theatre in north Kolkata.

She acted diverse roles in a wide variety of films, and is known for her versatile outlook in her many roles. Her acting even caught the attention of the legendary Laurence Olivier.

Proficient in both negative and comic roles, Dey was brilliant in the role of torn and scheming mother in Ritwik Ghatak's Meghe Dhaka Tara.^[4]

Throughout her long career, she worked with directors like Sisir Bhaduri, Ritwik Ghatak, Debaki Bose and Satyajit Ray. She also acted in a Bollywood musical based on Sarat Chandra Chattopadhyay's Parineeta, starring Saif Ali Khan and Vidya Balan.^[2]

Though ailing, she went on acting and won applause in recent films like Tolly Lights and Chirodini Tumi Je Amar.

Dey died on 17 January 2011 in Kolkata, aged 79.

• Meghe Dhaka Tara 1960
• Teen Kanya 1961
• Dampati 1943
• Indrani 1958
• Saat Paake Bandha 1963
• Nauka Dubi
• Malyadaan,
• Abhaya o Srikanta
• komol Gandher 1961
• Abhaya o Srikanta
• Sesh Porjonto 1960
• Daini 1992
• Kathin Maya 1961
• Kanchanmulya 1961
• Sathi Hara 1961
• Kancher Swarga 1962
• Shubba Drishti 1962
• Bandhan 1962
• Dui Bari 1963
• Chhaya Surya 1963
• Nishipada
• Dui Bhai
• Ahoban
• Barnochora
• Pita Putro
• Mouchak
• Tolly Lights
• Chirodini Tumi Je Amar
• Kathavasheshan (Malayalam)
• Parineeta

For her lifetime contributions to Bengali cinema, in 1998 she received a star medal from the University of Calcutta from the then Governor of West Bengal Saiyid Nurul Hasan. She also got the presidential award for lifetime contribution to Bengali cinema and theater.