On 23 December 1912, Biswas, disguised as a woman, threw a bomb at Lord Charles Hardinge, who was riding with his wife on an elephant during a procession at Chandni Chawak, Delhi.
Hardinge escaped with flesh wounds, but the servant behind him holding his parasol was killed.
The authors of the deed remained obscure for many months despite the state's intense investigation, and lucrative reward.
Biswas was arrested on 26 February 1914 in Poragachha, Nadia while he went to perform the last rites for his father.
The trial, which came to be called the Delhi-Lahore Conspiracy Case, began on 23 May 1914 in Delhi, and Basanta was found guilty on 5 October and sentenced to life imprisonment.
Three other men were condemned to death at the same trial: Amir Charid, Abadh Behari, and Balmokand.

An appeal was formulated at Lahore High Court.
The Crown won its appeal and Biswas was sentenced to be hanged.

Basanta Kumar Biswas was hanged on 11 May 1915 at Ambala Central Jail in Punjab aged twenty and became one of the youngest people to be executed during the Indian revolutionary struggles during the 20th century.
On 23 December 1912, Biswas, disguised as a woman, threw a bomb at Lord Charles Hardinge, who was riding with his wife on an elephant during a procession at Chandni Chawak, Delhi. Hardinge escaped with flesh wounds, but the servant behind him holding his parasol was killed. The authors of the deed remained obscure for many months despite the state's intense investigation, and lucrative reward. Biswas was arrested on 26 February 1914 in Poragachha, Nadia while he went to perform the last rites for his father. The trial, which came to be called the Delhi-Lahore Conspiracy Case, began on 23 May 1914 in Delhi, and Basanta was found guilty on 5 October and sentenced to life imprisonment. Three other men were condemned to death at the same trial: Amir Charid, Abadh Behari, and Balmokand.
An appeal was formulated at Lahore High Court. The Crown won its appeal and Biswas was sentenced to be hanged.
Basanta Kumar Biswas was hanged on 11 May 1915 at Ambala Central Jail in Punjab aged twenty and became one of the youngest people to be executed during the Indian revolutionary struggles during the 20th century.
Basanta Kumar Biswas