Why is India’s Manipur burning for three years?

Violence has erupted in Manipur, India's northeastern state, shattering months of relative calm after a bomb blast killed two children. The state is divided between the mainly Hindu Meitei majority and the predominantly Christian Kuki-Zo community. Renewed violence is the latest chapter of a three-year-long civil conflict, leaving communities living in deep segregation. At least seven people have been killed and more than a dozen arrested since the latest episode of violence broke out.