vanniyars are most backward caste in India.  please dont put khastriya 

vanniyars are most backward caste in India

http://books.google.com/books?id=IFTySnKR2VEC&pg;=RA1-PA4-IA2&dq;=vanniyar+backward+caste&hl;=en#v=onepage&q;=vanniyar%20backward%20caste&f;=false

Untouchable citizens: Dalit movements and democratisation in Tamil Nadu By Hugo GorringeTake our survey New! page - 59

Talisman, extreme emotions of Dalit liberation By Thirumaavalavan, Meena KandasamyTake our survey New!   page 8

http://books.google.com/books?id=VsE2KwKwh0YC&pg;=PA8&dq;=vanniyar+backward+caste&hl;=en#v=onepage&q;=vanniyar%20backward%20caste&f;=false