River Sutlej in the context of "Pakistani Punjab"

Punjab (/pʌnˈdʒɑːb/ pun-JAHB; Punjabi, Urdu: پنجاب, pronounced [pəɲˈd͡ʒaːb] ) is a province of Pakistan. With a population of over 127 million, it is the most populous province in Pakistan and the second most populous subnational polity in the world. Located in the central-eastern region of the country, it has the largest economy, contributing the most to national GDP in Pakistan. Lahore is the capital and largest city of the province. Other major cities include Faisalabad, Rawalpindi, Gujranwala and Multan.

It is bordered by the Pakistani provinces of Khyber Pakhtunkhwa to the north-west, Balochistan to the south-west and Sindh to the south, as well as Islamabad Capital Territory to the north-west and Azad Kashmir to the north. It shares an international border with the Indian states of Rajasthan and Punjab to the east and Indian-administered Kashmir to the north-east. Punjab is the most fertile province of the country as the Indus River and its four major tributaries Ravi, Jhelum, Chenab, and Sutlej flow through it.