"first glimpse of the flag of [Pakistan]", Source: The Kansas Star.
Jawaharlal Nehru and Mahatma Gandhi believed India should stay one country; a unified, secular country for Hindus, Muslims, Sikhs, Jains, and Christians. These deliberations angered Hindu nationalists leading to violence against the Muslim population. On the other hand, Jinnah communicated his desire for Pakistan, a nation of Muslims. If India stayed unified, Jinnah believed Hindu Raj and ultimately civil war would follow. If Pakistan became a reality, the All-India Muslim League would leave India. Muslims who stayed behind would lose everything. Jinnah's speeches influenced Muslims to pour into Pakistan from all over India, a migration that an undeveloped nation could not handle. Many people died trying to reach Pakistan, and many more died because of religious violence.
The Rawalpindi riots, Source: India Times
As Nehru and Gandhi argued against Jinnah’s plan for Muslims, Hindus turned upon Muslims. The people who united to gain independence were now divided. Hindus protested against the formation of a Muslim ministry in the Punjabi government. Many were killed in the riots that ensued in Rawalpindi.
The train to Pakistan, Source: BBC
Nehru’s supporters burned trains to Pakistan, massacring Muslims in the hope that India would keep the same borders as British India. This only encouraged more Muslims to reach Pakistan, giving the partition a bloody legacy in history as almost 14.5 million people migrated over the course of 4 years.
"In August, 1947, when, after three hundred years in India, the British finally left, the subcontinent was partitioned into two independent nation states: Hindu-majority India and Muslim-majority Pakistan. Immediately, there began one of the greatest migrations in human history, as millions of Muslims trekked to West and East Pakistan (the latter now known as Bangladesh) while millions of Hindus and Sikhs headed in the opposite direction. Many hundreds of thousands never made it."--(William Darlymple, The Great Divide: The Violent Legacy of Indian Partition).