Sri Narayana Guru preached the doctrine of ‘One caste, One religion, One God.’ It was his atheist disciples, Sahadaran Ayyapan, who changed into ‘no religion, no caste and no God for mankind.
For further reading check the following articles:
- List of Socio-Religious Movements
- Dayananda Saraswati – Arya Samaj
- Indian Education System During British Rule