India's Major Reservoirs at 28.28% Capacity Amid Monsoon Deficit
As of 11 June 2026, India's 166 major reservoirs held 51.92 billion cubic metres of live storage, which is 28.28% of their total capacity of 183.56 billion cubic metres. Although storage is 15.8% above the 10-year normal for this time, it is 8.17% lower than last year, with eastern and southern regions particularly affected. The Central Water Commission highlights that the ongoing monsoon progress is critical for irrigation, drinking water, and hydropower generation, especially with a near 40% deficit in cumulative monsoon rainfall so far in June 2026.
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Key Facts
- As of 11 June 2026, India's 166 major reservoirs held 51.92 billion cubic metres (BCM) of live water storage, equal to 28.28% of their total live storage capacity of 183.56 BCM.
- Live storage refers to the usable volume of water between the minimum drawdown level and the full reservoir level.
- The Central Water Commission (CWC) monitors reservoir storage weekly for water supply, irrigation, and hydropower planning.
- National reservoir storage in 2026 is 15.8% above the 10-year normal for the same period but 8.17% lower than in June 2025.
- Regional disparities exist: Eastern India’s reservoirs hold 21.77% of capacity, which is below last year and normal levels; Southern India’s reservoirs hold 20.98%, also below normal and sharply lower than last year.
- Several reservoirs such as Chandan Dam, Bhima-Ujani, Maudaha, and Nanak Sagar are reported nearly empty compared to normal levels.
- India has experienced a nearly 40% deficit in cumulative monsoon rainfall as of 20 June 2026, with June rainfall of 46.2 mm against a normal of 74.3 mm for the first 17 days.
Background & Context
The Central Water Commission is the apex technical organisation in India for water resource management, monitoring the live water storage of major reservoirs across all river basins. Understanding live storage capacity is essential for managing irrigation, drinking water supply, and hydropower generation, particularly during the monsoon season. While northern and western Indian reservoirs are relatively better, regions in eastern and southern India face significant water stress due to lower reservoir levels and reduced rainfall.
Why This Matters for Exams / Exam Relevance
Knowledge of India's water resources, their monitoring by the Central Water Commission, and regional variations in reservoir levels are key for environment, geography, and current affairs sections of competitive exams. The impact of monsoon variability on reservoir storage affects agriculture and energy sectors, making this data relevant for questions on sustainable resource management, climate vulnerability, and government initiatives.
Points to Remember
- India's 166 major reservoirs have a total live storage capacity of 183.56 BCM.
- Current storage as of 11 June 2026 is 51.92 BCM (28.28% of capacity).
- Storage is 15.8% above 10-year average but 8.17% lower than same period last year.
- Eastern and southern reservoir levels are below normal and last year's levels.
- Nearly empty reservoirs as on June 2026 include Chandan Dam, Bhima-Ujani, Maudaha, and Nanak Sagar.
- Monsoon rainfall deficit is nearly 40% by 20 June 2026, impacting irrigation, drinking water, and hydropower.
Sources & Further Reading
| Document / Website | Link |
|---|---|
| India’s major reservoir storage falls to 28.28% | Open India’s major reservoir storage falls to 28.28% ↗www.gktoday.in |
| Reservoir Level & Storage Bulletin - Central Water Commission | Open Reservoir Level & Storage Bulletin - Central Water Commission ↗cwc.gov.in |
| India’s reservoirs at 28% capacity as monsoon becomes crucial | Open India’s reservoirs at 28% capacity as monsoon becomes crucial ↗www.downtoearth.org.in |