The Indus River System is the lifeline of Pakistan’s agriculture and economy, originating from Tibet and entering Pakistan through Ladakh. It flows through Gilgit-Baltistan, Khyber Pakhtunkhwa, Punjab, and Sindh, finally draining into the Arabian Sea near Thatta. It is approximately 3,180 km long.

The system includes five major tributaries:

• Jhelum

• Chenab

• Ravi

• Beas (mostly in India)

• Sutlej

Collectively called the Punjab Rivers, these join the Indus River at Mithankot. The Indus Basin Irrigation System (IBIS) is the world’s largest contiguous irrigation system, covering around 16 million hectares.

The Indus Waters Treaty (1960), brokered by the World Bank between Pakistan and India, allocates:

• Western rivers (Indus, Jhelum, Chenab) to Pakistan

• Eastern rivers (Ravi, Beas, Sutlej) to India

Major dams and barrages on the Indus include Tarbela Dam, Mangla Dam, and Chashma Barrage.

This system is vital for food security, power generation, and livelihoods. However, it faces challenges like water scarcity, climate change, glacier melting, and Indian upstream projects, making efficient water management and diplomacy critical for Pakistan’s future.