Sindhis (, Sindhī) are a Sindhi speaking socio-ethnic group of people originating from the Sindh province of Pakistan. Today Sindhis that live in Pakistan belong to various religious denominations including Islam, Zoroastrianism, Hinduism, Sikhism and Christianity. The original inhabitants of ancient Sindh were believed to be aboriginal tribes speaking languages of the Indus Valley civilization around 3000 BC.