Mandi Bahauddin, also spelled Mandi Baha ud Din, is a district in the Punjab province of Pakistan.

Jhelum District, is partially in Pothohar Plateau, and partially in Punjab Plain of the Punjab province of Pakistan. Jhelum is one of the oldest districts of Punjab. It was established on 23 March 1849. Jhelum is known for providing many soldiers to the British and later to the Pakistan armed forces due to which it is also known as 'city of soldiers' or 'land of martyrs and warriors'. The district of Jhelum stretches from the river Jhelum almost to the Indus. Salt is quarried at the Mayo mine in the Salt Range. There are two coal mines in the district from which the North-Western railway obtains parts of its supply. These are the only coal mines in Punjab province which are in working condition. The chief center of the salt trade is Pind Dadan Khan. The district is crossed by the main line of the North-Western railway and also traversed along the south by a branch line. It is located in the north of the Punjab province, Jhelum district is bordered by Sargodha and Mandi Bahauddin to its south, Khushab to its southwest, Jhelum River to its south and east, Gujrat to its east, Chakwal to its west, Mirpur to its northeast, and Rawalpindi to its north.