This document discusses water resources in Pakistan. It describes how dams and barrages are constructed to store water from rivers for irrigation, domestic, and industrial uses. It outlines both traditional methods of irrigation like shaduf and charsa, as well as modern techniques using perennial canals and tubewells. The document also discusses the Indus Water Treaty with India and the river systems in Pakistan, focusing on the eastern Indus system and smaller western Balochistan rivers. Issues like siltation, waterlogging, salinity, and water pollution affecting water resources are also summarized.