The answer is M. N. Roy.

M. N. Roy was a Bengali revolutionary and political theorist who played a key role in the founding of the Communist Party of India. He was born in 1887 in West Bengal, India, and studied in England and the United States. He became involved in the revolutionary movement in India and was arrested and imprisoned several times.

In 1920, Roy traveled to Tashkent, where he met with other Indian revolutionaries who were interested in forming a communist party. They formed the Communist Party of India on October 17, 1920, and Roy was elected as the party`s first general secretary.

Roy was a controversial figure, but he was also a brilliant thinker and a tireless advocate for the cause of communism. He died in 1954 in Mexico City.

The other options are incorrect. H. K. Sarkar was a communist leader who was active in the 1930s and 1940s. P. C. Joshi was the general secretary of the Communist Party of India from 1935 to 1948. M.C. Chagla was a lawyer and politician who served as the chief minister of Bombay from 1952 to 1956.