From http://www.bfg-muenchen.de/goralife.htm (Gora's Life:An Outline):
"At Sevagram Gandhi told Arjun, "You should become like Ambedkar. You should work for the removal of untouchability and caste. Untouchability must go at any cost." "
More of Gora (Goparaju Ramachandra Rao) and Gandhi can be found in: "An Atheist with Gandhi" at http://www.positiveatheism.org/india/gora12.htm