Sanghapali Aruna is an anti caste activist and the founder of Dalit History Month. She recently met the CEO of Twitter and gave him a poster which said 'Smash Brahminical Patriachy.' A photo of Twitter's CEO Jack holding that poster, has become a big controversy in India. In conversation with The Wire's Anoo Bhuyan, Sanghapali discusses what brahminical patriarchy is and why she is fighting it.