The novel is a fictionalised retelling of the assassination of Phanindra Nath Ghosh, former revolutionary-turned-approver, whose testimony was crucial in the conviction of Bhagat Singh, Sukhdev and Rajguru.
Bhagat Singh was born on September 28, 1907, at Banga in Lyallpur district (now Pakistan) to Kishan Singh and Vidyavati. At the time of his birth, his father Kishan Singh, uncles Ajit and Swaran Singh.