Original sentence: Hindus in what is now Pakistan have declined from 23 % of the total population in 1947 to less than 2% today.The increasing Islamization has caused many Hindus to leave Hinduism and seek emancipation by converting to other faiths such as Buddhism and Christianity.There have been severe persecution of Hindus by Muslims in Pakistan since its formation in 1947
Edited sentence: Hindus in what is now Pakistan have declined from 23% of the total population in 1947 to less than 2% today due to exchange of religious population.The increasing Islamization of Pakistan and caste discrimination by high caste Hindus has caused many Hindus to leave Hinduism and seek emancipation by converting to other faiths such as Buddhism and Christianity.There have some cases of Hindus by Muslims in Pakistan since its independence in 1947