Correct Answer: (b) M.K. Gandhi
Solution:All India Harijan Samaj was founded by the M.K Gandhi in the year 1932 in Bombay It is a non-profit organization. It is working for Harijan or Dalit people and upliftment of the Depressed Class of India. It is headquartered at Gandhi Ashram, Kingsway, Delhi with the branches in 26 states. At the time of founding industrialist, Ghanshyam Das Birla was its founding president with Amritlal Takkar as its Secretary. Its headquarter Gandhi Ashram, Kingsway Camp is listed as Gandhian Heritage Site by the Ministry of Culture, Govt. of India. It helped the depressed classes to access public places such as temples, schools, roads, and water resources, also conducted inter dining and inter-caste marriages. In the year 1939, Harijan Sevak Sangh of Tamil Nadu headed by A. Vaidyanatha lyer entered the Meenakshi Amman Temple in Madurai, with members of the depressed class.