Who among the following was NOT a Communist leader in colonial India ?

P. C. Roy (Prafulla Chandra Ray) was a renowned chemist, educationist, and nationalist, but he was not a Communist leader. He is famously known as the 'Father of Indian Chemistry' and founded Bengal Chemicals & Pharmaceuticals. In contrast, S. A. Dange, Muzaffar Ahmad, and Singaravelu Chettiar were pivotal figures in the early communist movement in colonial India. S. A. Dange led the Bombay group and authored 'Gandhi vs. Lenin'. Muzaffar Ahmad was a founder of the movement in Calcutta and edited 'Navyug'. Singaravelu Chettiar led the Madras group, organized the first May Day in India in 1923, and founded the Labour Kisan Party. All three were co-accused in the 1924 Cawnpore Bolshevik Conspiracy Case, which targeted those attempting to establish a branch of the Communist International in India.

Sources

1. [1] https://en.wikipedia.org/wiki/Communist_involvement_in_the_Indian_independence_movement