 Mitra was aware of a major consignment of arms and ammunitions being shipped to the firm in August 1914.Informed of the impending arrival, a group of "Jugantar" members headed by Anukul Mukherjee met on 24 August 1914 in Bowbazar suburb of Calcutta.Among those present in the meeting was Naren Bhattacharya, who dissented from the plan and left.