Why were India and Pakistan split upon receiving Independence

The partition was set forth in the Indian Independence Act 1947 and resulted in the dissolution of the British Raj, or Crown rule in India. The two self-governing countries of India and Pakistan legally came into existence at midnight on 14-15 August 1947.

Explanation:

Jaswant Singh's book has raised a fresh controversy on who was responsible for the Partition of India. Some think it was Mohammed Ali Jinnah; others say Jawaharlal Nehru/Sardar Patel. The truth is that the seeds for Partition were sown at least 80 years before Partition actually happened.

in August 1947, the British decided to end their 200-year long rule in the Indian subcontinent and to divide it into two separate nations, Muslim-majority Pakistan and Hindu-majority India. The process of partition, however, was not simple.