The historic 'Delhi Conspiracy Case' of 1912, involving the bomb attack on Viceroy Lord Hardinge during his ceremonial entry into the new capital, was masterminded by:

💡 Solution & Explanation

Rash Behari Bose and Sachin Sanyal masterminded the 1912 Delhi Conspiracy Case, which involved throwing a bomb at Viceroy Lord Hardinge during his ceremonial procession into the new capital. Bhagat Singh and Sukhdev were key figures in later revolutionary activities like the Hindustan Socialist Republican Association.