Chart of Punjab (Pakistan) divisions by population (1998)

There are 48 departments in Punjab government. Each Department is headed by a Provincial Minister (Politician) and a Provincial Secretary (A civil servant of usually BPS-20 or BPS-21). All Ministers report to the Chief Minister, who is the Chief Executive. All Secretaries report to the Chief Secretary of Punjab, who is usually a BPS-22 Civil Servant. The Chief Secretary in turn reports to the Chief Minister. In addition to these departments, there are several Autonomous Bodies and Attached Departments that report directly to either the Secretaries or the Chief Secretary.

Reference 1: Area (km²) and Population (1998).

Reference 2: Bahawalpur, Dera Ghazi Khan, Faisalabad, Gujranwala, Lahore, Multan, Rawalpindi, Sahiwal and Sargodha.

Source: http://en.wikipedia.org/wiki/Pakistani_Punjab