according to hindu mythology, mans are bieved to he erged fromhe body ofhe crtor, braa. priests me from s head. theye at theop of thcaste syst. rriors ce from his shouers, andraders fm his omach. servts were rn from s feet. and ght at t very boom of thisierarchyre the dits. these ople arexpected do clean wo. there ar200 milln dalitsn ina, and ty regulay experien discrimation. and now many dalits have had enough. they regularly campaign for greater respect and equal rights. in terms of daily life, however, there's still a long way to go. reporter: pintu and ashok are in luck today. they've found a few hours of work. first they numb themselves with cheap liquor, otherwise they wouldn't be able to bear it. ashok submerges himself waist-deep in a stinking brew of human excrement. he uses a small shovel to unblock the sewer pipe. he earns the equivalent of five euros a day. ashok: there's no other work for me. what else can i do? i have to feed my family. and this is the best i can get. reporter: this kind of work is banned under indian law, but pintu and ashok are dalits --

he bieves at mosul is better than its image. ali: mosul is not isis.osul has always been living in a co-existential way. i have christianrds, kurdish students. i have yezidi students. and nobody thought to put a finger on a hair of them. what happened was something exceptional, was something brutal. and it was something that happened by the tiniest portion of muslims, of iraqis. reporter: photos from that dark era. ali took them secretly, and in doing so, he risked his life. the university, abandoned. most departmentserclosed. ali also lost his job as a lecturer. his father, who had always shaved, was forced by i.s. to grow a beard. the book forum cafe. 's a place that breathes freedom. a year ago, the building was still burnt out. now, schoolchildren, students, and artists meeterto do all the things that had been forbidden for years. to read, to play music, to smoke, to have fun. a few of ali's pictures also grace the walls. he's a regular customer, and a friend of the owner. fahed sabah invested all his savings into the cafe. during the i.s. period,