Explanation:

• The Delhi Conspiracy case, also known as the Delhi-Lahore Conspiracy, refers to an attempt made in 1912 to assassinate the then Viceroy of India, Lord Hardinge by throwing a local self-made bomb, on the occasion of transferring the capital of British India from Calcutta to New Delhi.
• Hatched by the Indian revolutionaries underground in Bengal and Punjab and headed by Rash Behari Bose, the conspiracy culminated in the attempted assassination on 23 December 1912,
• a homemade bomb was thrown into the Viceroy's howdah as the ceremonial procession was moving through the Chandni Chowk suburb of Delh