The Sindhu River, which runs through modern-day Pakistan, was at the heart of the Indus Valley Civilization (c. 3300–1300 BCE), one of the world’s earliest urban cultures.

Chaudhry’s reference to “Sindhu Daish” appeared to link Bilawal's use of “Sindhu” to Sindhi nationalist rhetoric, invoking the name of GM Syed, ... Sindhu River is the Indus River.

He claimed that when he was the country's foreign minister, the river faced similar threats from the neighbouring country which had wanted to get rid of the Indus Water Treaty, 1960.