Asaf Ali, who represented the accused, attempted an objection to the oath being administered to Kailashpati on various legal technicalities.
The memory of Kailashpati was phenomenal and he gave such a vast volume of detailed information on every minor and major subject, which ran into about 900 pages of deposition, that it became impossible for the prosecution to tie the loose ends of the story to secure conviction for the accused.
The primary goal of the Hindustan Socialist Republican Association (HSRA) was to gain independence of India from Britain by use of armed revolution.
He then briefly moved into the room of Sheo Verma at the DAV College Hostel, where he met Sukhdev Raj, who was known as "Villager", Chandrashekhar Azad and Gaya Prasad.
Babu Ram Gupta was a revolutionary and he used his shop in Billimaran as a facade for the purpose of buying bomb-making materials on regular basis.
Nitroglycerine was also produced in the factory, and the group also intended to make hydrocyanic acid from potassium cyanide, initially purchased in weak form from Gupta and later in a stronger concentration from elsewhere.
He asked to meet Azad in Delhi Soon after, Vohra criticised suggestions of killing relatively minor Raj officials and proposed instead to blow up a train carrying the viceroy, Lord Irwin.
Yashpal was at that time living in the same Delhi house as Vohra and the two men were experimenting with arrangements of batteries to blow lightbulbs, thinking that such might be used as a primitive method of detonating guncotton.
Early in December 1929, Vohra and Yashpal secured the agreement of Azad regarding blowing up the Viceregal train,[citation needed] the rationale of the HSRA being that it would prevent a meeting between Irwin and Congress.
Explanatory documents had been prepared for circulation after the now-aborted attack, along with two seals – one of them representing a hand grasping a sword and the other the monogram "H.S.R.A".
According to S. K. Mittal and Irfan Habib, this "caused a commotion throughout the British Empire", following soon after the retaliatory murder of a police constable, John Saunders, and the bombing of the Central Legislative Assembly, both of which acts had involved Bhagat Singh.
[1][a]After a few days spent in hiding, Azad, Jain and Kailashpati left on foot for Nalgarha, around 15 miles (24 km) from the city.
Yashpal replied that he had yielded to the insistence of his companions, explaining that he and Vohra had gone to the scene on the morning of 23 December and that he had pressed the button that caused the explosion.
[citation needed] Specifically, they intended to address a pamphlet issued by Gandhi – The Cult of the Bomb – which had criticised their methods.
Other copies were posted to individuals, including Sir James Crerar, Home Member, Assembly, Delhi; Asaf Ali, the barrister; and Kamla Parshad Jain, of Baraut.
Aside from rescuing Kundan Lal, Kanwal Nath Tiwari, Bijay Kumar Sinha, Bhagat Singh, Rajguru, Batukeshwar Dutt, Ajay Kumar Gupta, and Sanyal, it had been decided that Mahabir Singh, Sukhdev Raj and Desh Raj were to be killed because they had made statements which had been of great assistance to the police.
Further, Shiv Verma, S. N. Pande and three others (including Agya Ram) were to be given another chance to prove their sincerity, while the case of Gaya Prasad was to be tried by the Revolutionary Tribunal as it was uncertain whether he had made a statement or not.
This caused a decision to effect rescue by a desperate attack on the court, for which the various conspirators undertook firearms practice away from Delhi.
The plan was that while Bhagat Singh was to be led by police out of the jail gate towards the stationed police lorry, the captive was to rush towards the rescue-team, and the team, while taking control of the prisoner, was to deal with the emerging situation by killing any or all policemen who might obstruct the captive's escape to freedom or pursue him to capture.
A Central Committee meeting of the party determined that Yashpal, who was not present, had wasted much money in the attempts on the viceregal train and the rescue of Bhagat Singh.
It was also decided in the meeting that a terror campaign against highly placed government officials, approvers and traitors should be vigorously pursued throughout India.
The meeting also decided that the party should organize a public demonstration in Punjab to honour Vohra in order to highlight his work and sacrifice and also to motivate and mobilize other young people.
Soon after, Kailashpati then discovered that Yashpal, Prakasho and Scientist had left the bomb-factory and had taken with them the available supplies of picric acid, guncotton and nitroglycerine, as well as a revolver.
Yashpal had already reached Lahore by that time and had spread the word about the plan of his killing among his friends by taking the position that the decision of the Central Committee of the party had been arrived at in his absence – without hearing his side – which was contrary to justice.
This action was a success, although the robbers were faced with a crowd of people who attempted to stop them as they left, causing them to fire their weapons in order to get away.