Shudra is a division of the caste system. A shudra is considered a servant or peasant. Shudra and Ati-shudra indicates the bottom most ranks in the Indian caste system. [1]
Mahatma Jyotirao Phule set out the history of shudra-ati-shudra communities in his book Gulamgiri. He drew the attention to the exploitation of Shudras, Ati-shudras, and women etc. At this time, most prefer not even to touch such castes.