[citation needed] During his early college days, Dutta met with Charu Chandra Roy, who inspired him to join the revolutionary movement during the agitations against the Partition of Bengal.

He also developed a close connection with the Gondolpara revolutionary group, led by Shrish Chandra Ghosh.

[citation needed] Just two days after the Muzaffarpur bomb attack on 30 April 1908, aimed at killing Magistrate Douglas Kingsford, the police raided and arrested a number of revolutionaries in Bengal on 2 May 1908.

[citation needed] Police raided premises at 32 Murari Pukur Road in Kolkata on 2 May 1908 and a bomb-factory was discovered as was a cache of arms, a large quantity of ammunition, bombs, detonators and other tools.

During this time one detainee, Narendranath Goswami (aka Norendra Nath Gossain), became an approver of the British, and started revealing names of many persons to the police, leading to further arrests.

Barin Ghosh, Shanti Ghosh and Ullaskar Dutta's names were mentioned in attempting to blow up the governor's train at Chandernagore station in 1908; referring to the bomb outrage in the Mayor's house he mentioned the name of Charu Chandra Roy, being the leader of the revolutionary outfit of Chandernagore;[8] and on 24 June he mentioned the names of Aurobindo Ghosh and Subodh Chandra Mallik linking them to revolutionary activities.

[9] The under-trial prisoners under the leadership of Barin Ghosh hatched a plan to escape from the Alipur Central Jail, and also to get rid of Goswami.

He also wrote to Shrish Chandra Ghosh to send acid for the purpose of throwing at jail wardens and wax to copy keys.

The next day Barin asked Hem Das to give it to Satyendranath Bosu with instructions to kill Goswami.

[2] Narendranath, intentionally kept separated from the other prisoners, was confined in the European Ward in Alipore Central Jail.

Shrish Chandra Ghosh of Chandernagore smuggled the revolvers into the jail, assisted by Motilal Roy.

Narendranath although shot in several places was not mortally hit and fled down the stairs, out of the hospital compound and along an alley way towards the gate.

On 5 September 1908 the news paper Indu Prakash made the following observation:"The Bengal anarchists were perhaps the most romantic lot in the whole anarchist world, and in point of bravery, daredevilry and cunning they were no doubt far ahead of Russian and Spanish desperadoes - quick in action, quick in revenge and smart in getting rid of any approver.

Sir Prafulla Chandra Roy on a later date commented that Kanailal taught the Bengalees the proper use of "shall" and "will", pointing to his sense of English grammar.

Kanailal's statement to the District Magistrate about his motive for assassinating Naren was touchingly direct and simple: "I wish to state that I did kill him.

"The sentence was carried on 10 November 1908, and Kanailal was hanged till death in the Alipore Jail at about seven in the morning.

In that book Motilal recalled the sight of Kanilal's body on the funeral pyre: "As soon as the blanket was carefully removed, what did we see - language is wanting to describe the lovely beauty of the ascetic Kanai - his long hair fell in a mass on his broad forehead, the half-closed eyes were still drowsy as though from a test of nectar, the living lines of resolution were manifest in the firmly closed lips, the hands reaching to the knees were closed in fists.

Men, women and children followed the procession in large numbers, shouting Jai Kanai occasionally.

[5] While fleeing from Muzaffarpur, on 2 May 1908, Prafulla Chaki was cornered at Mokama Ghat railway station and was about to get arrested when he killed himself by firing two shots one at the forehead and the other on the left side of his chest at the head.