Correct Answer: (d) M.A. Ansari
Solution:To repress the increasing power of communists in India, few communist leaders were tried on the basis of a conspiracy in Kanpur. This case became famous as 'Kanpur Conspiracy' case of 1924.
The list of 13 persons originally accused in the Kanpur case:
(1) MN Roy, (2) Muzaffar Ahmad, (3) Shaukat Usmani, (4) Ghulam Hussain, (5) SA Dange, (6) M. Singaravelu, (7) RL Sharma, (8) Nalini Gupta, (9) Shamuddin Hassan, (10) MRS Velayndhun, (11) Doctor Manilal, (12) Sampurnananda, (13) Satyabhakta.