Why was India split into two countries?

In 1947, the British viceroy announced that after 200 years of British rule, India would gain independence and be partitioned into Hindu India and Muslim Pakistan. What followed was one of the largest and bloodiest forced migrations in history: an estimated 1 million people lost their lives. What caused this violent aftermath? Haimanti Roy details the lasting legacies of the Partition of India. [Directed by Jagriti Khirwar & Raghav Arumugam, narrated by Safia Elhillo, music by Salil Bhayani].