Every battle has to be properly planned, more so if it is a battle between two unequals. In the present case, one was the mighty British Govt. and the other the microscopic revolutionary trio, Binoy, Badal (Sudhir) and Dinesh. The first two died almost on the spot and Dinesh followed. He was hanged after a trial. The more important of the two Binoy Krishna Bose had already hit the headlines when he had killed Lowman, the I. G. of Police on 29th August, 1930. The police chief had gone to visit some ailing officer at Dhaka Medical College Hospital where Binoy was a student. It was a broad daylight and daring episode. His identity was never a secret. A copy of his photo was taken out of college magazine and pasted all over. A reward of Rs. 10,000/- was announced. But Binoy was far from helping someone receiving it. He was ultimately caught only to die at the Medical College Hospital in Kolkata, after the Battle of the Verandah.
In August, there are torrential rains in East Bengal. One such morning two Muslim villagers, with tatters covering their bare bodies were seen wading through knee-deep water. The nearest railway station, Dolaiganj, was their destination. They entered the platform which was swarming with policemen. Binoy's photo was pasted all around. The train from Dhaka to Narayanganj arrived. Every compartment was searched thoroughly. Binoy and his companion got into a third class compartment which was already over-crowded. When the train reached Narayanganj, the police searched not only the train but had instructions to search the boats also. A river had to be crossed before one could reach Kolkata. Binoy came to know of it through his own sources. When the train slowed near a flag station, he began to walk towards the Ghat for a boat. They had to hire one to cross the turbulent Meghna. They changed their address, from Muslim beggars in tatters to one of a Zamindar with a servant. For a while they had to travel by a steamer. The whole episode was like a scene from a film. The name of the companion was Supati Roy.
On reaching the city, they avoided Sealdah, the terminus, and got down at Dum Dum, a small way-side station. The journey from there to the slum area of No. 7, Waliullah lane in Central Kolkata, was somewhat uneventful. But a long stay for unknown persons might arouse suspicion. Binoy shifted to a Colliery at Katras Garh and from there to a peaceful place in North Kolkata. But he always had the premonition that the police would soon find him out. His fear proved correct and the police chief, Sir Charles Tegart, arrived there with a posse of policemen. But the bird had flown out of the cage. A clever boy Binoy proved to be a step more intelligent.
About this time Subhas Babu and Sir P.C. Roy were trying to arrange for a safe place for him outside India. Even Lady Roy agreed to bear the expenses. But Binoy firmly refused. His ideal was not personal safety or wellbeing but to take the next step, more daring and dramatic than the one (at Dhaka) before so that it would shake up the British rule in India. His comrades-to-be Sudhir Gupta (Badal) and Dinesh Gupta had already arrived for the action. The place and the date were fixed. It was to be at the Writers' Building, the Secretariat, and on 10th December 1930. The main target was Col. Simpson, the I. G. of Prison. Binoy had already killed Lowman, the I. G. of Police at Dhaka. To make foolproof success, a detailed sketch of the interiors of the building was drawn by Prafulla Dutta, Supati Roy, Nekunja Sen and Rasamoy Sur. All played their own part in the daring drama that was to follow. Badal and Dinesh were also taken there to have a first hand knowledge of the building. But Binoy could not be so taken; for, the police was after his blood and his photograph were put up all around.
Accompanied by Rasamoy Sur and after changing one taxi, Binoy, Badal and Dinesh reached Writers Building exactly at 12 noon. Badal with a newly stitched suit handed over a visiting card to the peon. On it was written a fictitious name, B. N. Dey. The bait was swallowed. Simpson was poring over the papers on the table before him. Suddenly entered the intruders. The I. G. looked up somewhat surprised when Binoy shouted 'Fire.' Revolvers roared in the language of revolutionary revenge. The officers' lifeless body fell on the floor. His P.A. hid himself under the table and escaped unhurt.
There was panic prevailing all round. The 'Three Musketeers' came out of the room and shot at any Englishman seen anywhere. Well-known civil servants like Nelson and Tyanam were those injured. The police headquarters were close by. Sir Charles Tegart the Commissioner rushed to the Writers' Building. Meanwhile, the trio entered the vacant passport room and took Potassium Cyanide. Badal, sitting on a chair, succumbed immediately but Binoy and Dinesh did not. It is said that the self-inflicted bullet injury prevented an immediate action. They were rushed to the hospital. But the best attention by the best doctors could not make Binoy gain consciousness. He only uttered a few words; "Left-Right-Left…." Dinesh was the only survivor to be hanged on the 7th July 1931. His good fortune, however, was that he could touch the feet of Subhas Bose while in jail.