It is essential to comprehend India's total usable water resources when examining its geographical assets. Usable water resources denote the quantity of water available for practical applications such as agriculture, industry, and domestic use, distinct from the total potential availability. Assessments by governmental bodies and research indicate that India's total usable water resources amount to approximately 1969 cubic km. This figure encompasses both surface and groundwater that can be managed given present infrastructural and technological constraints.
Consequently, the accurate figure is: 1969 cubic km