New Delhi, March 8 -- In 2016, the death of Rohith Vemula, a PhD scholar at the Hyderabad Central University, caused a stir, especially among people from historically oppressed castes. Among the latter was Yashica Dutt, associate creative director at advertising and marketing agency Admerasia Inc. and founder of Documents of Dalit Discrimination, an online archive, who told the world about her "hidden secret" through a Facebook note-"Today, I'm Coming Out As Dalit"-on 20 January 2016....