Harijan Sevak Sangh was formed in 1932 following Gandhiji’s fast unto death, opposing the Communal Award announced by the British Government and his call for the eradication of untouchability from Hindu society. Gandhiji stayed at Harijan Colony, Kingsway Camp many times during their visits to Delhi.
Gandhiji commenced fast unto death against separate electorates for Depressed Classes announced by the British Government on September 20, 1932. After Hindu leaders and suppressed class leaders signed the Agreement (Poona Pact) in the presence of Gandhiji on September 24, Gandhiji broke fast on September 26 in the presence of Rabindranath Tagore.
Gandhiji stayed at Harijan Colony for the first time from March 8 to 27, 1936. During this period, he began the practice of observing silence between 10 a.m. and 5 p.m. from March 9 to March 16. Gandhiji met Jawaharlal Nehru, M.C. Raja, attended Congress Working Committee meeting, attended Harijan Sevak Sangh meeting, and had discussions with Harijan workers.
During his long stay from September 20 to October 6, Gandhiji was at the Harijan colony. He attended meetings of the Congress Working Committee, All India Congress Committee, gave speeches, and drafted resolutions. He also laid a foundation stone of the temple in Harijan Colony in the memory of his associate BrijkrishnaChandiwala’s mother. During his one-day visit in the same year on November 10, he stayed at Harijan Colony. This was done solely for one purpose to remove untouchability completely from society.
[Source: https://www.gandhiheritageportal.org]