Question

One Caste One Religion, One God for Man is the teaching o

Answer 1

It's  the  teaching  of Sree   Narayana  Guru.He  was  a  Hindu  sant,sadhu  and  social  reformer  of  India.He  was  born  on  August  15,1856  at  Chepazhanthy.He  died  on 20  1928  at  Varkala.His  father  was  Madan  Asan  and  his  mother  was  Kutti  Amma.He  was named  by  his  father  as  Narayan.His  father  affectionately  called  him  Nanu - short  for  Narayan.
He  had  found  the  Advaita  Ashram  at  Aluva.