By Supriya Menon
BBC India Business Report
In the hot and arid countryside of Andhra Pradesh, T Manjula goes from house to house checking the year's harvest.
Born on the fringes of Indian society, she has fought her way up through hard work and guts.
A volunteer with the Deccan Development Society (DDS), she now tries to help other poor women, most of whom are Dalits, the lowest group in the Indian social hierarchy.