Correct Answer:
B. 19 September 1960
The Indus Waters Treaty is a landmark transboundary water-sharing agreement brokered by the World Bank between India and Pakistan.
- The treaty was officially signed on 19 September 1960 in Karachi by Indian Prime Minister Jawaharlal Nehru and Pakistani President Ayub Khan.
- It established a permanent framework for managing the distribution of the Indus River system basin.