evidence: Last week, it was reported that a 19-year-old Dalit woman (the Dalits were once called "Untouchables") was allegedly gang raped and assaulted by a group of upper caste men in Uttar Pradesh state again. The news shone the spotlight again on the rampant sexual violence faced by India's 80 million Dalit women, who like their male counterparts languish at the bottom of India's unbending and harsh caste hierarchy. [...] Ten Dalit women were raped every day in India last year, according to official figures. The northern state of Uttar Pradesh has the highest number of cases of violence against women as well as the highest number of cases of sexual assault against girls. Three states - Uttar Pradesh, Bihar and Rajasthan - report more than half of the cases of atrocities against the Dalits. [...] And Dalit women bear the brunt of violence of all castes, including their own. The Centre for Dalit Rights group examined 100 incidents of sexual violence against Dalit women and girls across 16 districts in India between 2004 and 2013. It found that 46% of the victims were aged below 18 and 85% were less than 30 years old. The perpetrators of the violence came from 36 different castes, including Dalit.