Which among the following organisations was responsible for throwing a bomb at Viceroy Lord Hardinge in Delhi?

The Delhi-Lahore Conspiracy Case of 1912 was a revolutionary plot to assassinate the then Viceroy of India, Lord Hardinge. The attack took place on December 23, 1912, during a ceremonial procession in Chandni Chowk, Delhi, to mark the transfer of the British Indian capital from Calcutta to Delhi. The mastermind behind the conspiracy was Rash Behari Bose, assisted by Sachin Sanyal. The bomb was thrown by Basanta Kumar Biswas.

The organization responsible for this act was Yugantar (also known as Jugantar). While it originated as an inner circle of the Anushilan Samiti in Bengal, Yugantar became the primary group associated with the "bomb culture" and militant actions in West Bengal and North India. Lord Hardinge survived the explosion with injuries, but his attendant was killed. Following the event, the British launched a massive crackdown, leading to the execution of several revolutionaries, while Rash Behari Bose managed to escape to Japan.