While working as a town planner in India (at Damodar Valley Corporation), England and Nigeria, he entered theatre as an actor, moved to direction, but soon started writing plays, starting with comedies. Badal Sirkar did experiments with theatrical environments such as stage, costumes and presentation and established a new genre of theatre called "Third Theatre". In Third Theatre approach, he created a direct communication with audience and emphasised on expressionist acting along with realism. He started his acting career in 1951, when he acted in his own play,
Bara Trishna, performed by
Chakra, a theatre group. Eventually still employed in Nigeria, he wrote his landmark play
Ebong Indrajit (And Indrajit) in 1963, which was first published and performed in 1965 and catapulted him into instant fame, as it captured "the loneliness of post-Independence urban youth with dismaying accuracy". He followed them with plays like
Baaki Itihaash (Remaining History) (1965),
Pralap (Delirium) (1966),
Tringsha Shatabdi (Thirtieth Century) (1966),
Pagla Ghoda (Mad Horse) (1967),
Shesh Naai (There's No End) (1969), all performed by
Sombhu Mitra's
Bohurupee group. His plays reflected the atrocities that prevailed in the society, the decayed hierarchical system and were socially enlightening. He is a proponent of the "Third theatre" movement that stood ideologically against the state. Third theatre involved street plays, with actors being attired no differently than the audience. Also the formal bindings of the
proscenium theatre was given up. Sarkar's "Bhoma" is an example of a third theatre play, set as always, in an urban background. Starting with
Sagina Mahato, which marked his advent into
arena stage, his subsequent plays,
Michhil (Juloos),
Bhoma,
Basi Khobor,
Spartacus based on
Howard Fast's historical novel
by the same name, were performed in parks, street corners and remote villages with the audience sitting all around. Sircar directed his last play in 2003, and after that his movements were restricted after a road accident, but even many years later till 2011 he continued performing at play readings and writing new works like adapting William Shakespeare's
Macbeth, two stories by
Graham Greene and a novel,
History of Love. Kerala Sangeetha Nataka Akademi awarded the prestigious 'Ammannur Puraskaram' in 2010 for his lifetime achievements in Indian Theatre. The award was presented to him by Girish Karnad during the inaugural function of 3rd edition of International Theatre Festival of Kerala (ITFoK). ==Death==