@love_lonewolf Ok. Dvija means twice born. Dvijas are Brahmins, Kshatriyas and Vaishyas. Ezhavas and Thiyars are outside varna system but were not regarded as Dalits bcoz they were free unlike Dalits who were slaves. They had to endure caste discrimination but a lesser degree compared to Dalits

Official denotation for Dalit castes in Kerala were “agricultural slaves attached to the property.” As per the evidence given to House of Lords in 1830, the slaves were generally sold for 5 Rupees to 20 rupees in the Shudra Hindu Kingdom of Travancore

Abolition of Slavery in 1843 was an important milestone in the History of Dalits, Adivasis, and OBC Shudras who lived inside the British Indian Government territories.

However, the purchase and sales of slaves continued till 1870s in many of the Hindu Kingdoms like Travancore despite repeated requests of the British Raj and the Christian missionaries to eradicate slavery.

After repeated British interventions, the Kingdom of Travancore finally banned slavery except for d sale of children in 1853 AD & it took, British Indian Penal code which came effective on the 1862 to put an official ban on the sale of children in the Shudra Kingdom of Travancore