Martyred at the age of seventeen years, Manoranjan Sengupta (1898-1915), son of Basantakumari and Haladhar Sengupta, was born in the Khairdanga village of the Faridpur district of undivided Bengal. Primarily educated in the village school, he moved to Mardaripur Higher English School; where he met the great revolutionary organizer, Purna Das, and became his ardent follower.
He was only fifteen years old when he took part in swadeshi dacoities led by Purna Das in different parts of the Faridpur district. All of them were arrested and tried in the Faridpur Conspiracy Case (1913); but, the police failed to establish their allegations before the court; leading to their release after a short period of imprisonment.
In the wake of the First World War, Purna Das agreed to Bagha Jatin’s line of waging a united armed assault on the British in India with arms support from Germany. From Faridpur, he sent his best boys, Manoranjan, Nirendranath Dasgupta, and Chittapriya Roychaudhuri to him. Within a month, they assassinated two police officers and collected a large sum of money through swadeshi dacoity in Calcutta.
The valiant three thus joined Jatindranath to coastal Odisha looking for the German ship Maverick leading to the Buribalam War (9 September 1915); in which Chittapriya was killed; while Manoranjan and Nirendranath laid down their arms at the order of their leader. After a hurriedly conducted special trial, they were hanged to death in Balasore Jail on 22 November 1915.