She completed her Graduation in Bachelor.LLB from South Calcutta Law College under Calcutta University.
Mumtaz started her career with a music video for singer Mehreen from Bangladesh. She first appeared in the short film Bhorai: The Maladies of Dawn directed by Subhrajit Mitra produced by NIBS.
Her schooling was from Modern High School for Girls (Kolkata). Sports is her hobby. As an athlete she got trained in Boxing from south Kolkata club under Bengal Amateur Boxing Federation.
She also has training in Judo.
She is also a classical Jazz dancer. She"s also a gold medalist in shot put from Young Men’s Christian Association. Her debut film was 033 which was directed by Birsha Dasgupta.
She also signed a Tollywood big screen film in Shoumik Senator directed Number Poblem (2007). The film is currently in post-production state & is slotted to be released in 2012.
The Film is based on the last story Rabindranath Tagore wrote.
He wrote the draft of the story on 24–25 June 1941 (one-and-half months before he died). The film was based on the draft. Biplab Chatterjee was one of her co-stars.
Then following up with 033, which was a joint venture between Moxie Group and NDTV Imagine.
lieutenant was a film about a group of youngsters who form a bangla band and named it after the city"s Doctor of Sacred Theology code (033). She played the role as "Ria".
The music in the film was scored by Chandrabindoo (band). Her co-stars in the film included Swastika Mukherjee, Parambrata Chatterjee, Sabyasachi Chakrabarty, Rudranil Ghosh.
2011 saw her in Telefilms Kolkatar Jongole and Rajbarir Rahasya based on the famous adventure series Kakababu by Sunil Gangopadhyay. are in slot in the corresponding series.
These Telefilms are produced by Mahua Films. 2012
2012 started with a big hit for her, with the success of Bhooter Bhabishyat. Portrayal of a die-hard romantic young girl "Koel" added another feather to her crown.
Her co-actors included Parambrata Chatterjee, Sabyasachi Chakrabarty, Swastika Mukherjee, Mir.
Her next film Kanchenjunga Express is of suspense Thriller (genre). The film is directed by Arnab Ghosh and is scheduled to be released mid June"12.
She has also signed a film Atmogopan by Somnath Senator. Mumtaz plays the character "Anu", Subhash Chatterjee essays her father.