What Happened
- India's 166 major reservoirs monitored by the Central Water Commission (CWC) held only 42.5% of their total live storage capacity as of mid-April 2026, down sharply from 66.6% in early February 2026.
- Four of five hydrological regions — Northern, Eastern, Southern, and Central — recorded storage below 50% of capacity, with the Southern region the worst affected at around 33.6%.
- Only the Western region (which includes Gujarat and Maharashtra's large reservoirs) maintained above-50% storage at approximately 53.7%.
- Rainfall has been deficient across roughly 30% of the country since March 1, 2026, accelerating drawdown without seasonal replenishment.
- By early April, total live storage stood at approximately 82 BCM (billion cubic metres) against a total monitored capacity of around 183 BCM.
- The decline of over 40 BCM in live storage between February and April mirrors a pattern of pre-monsoon depletion, but the pace is steeper than the 10-year average for the same period, raising concerns for Kharif sowing season water availability.
Static Topic Bridges
Central Water Commission (CWC) and Reservoir Monitoring
The Central Water Commission is a statutory body established in 1945 under the Ministry of Jal Shakti (Department of Water Resources, River Development and Ganga Rejuvenation). Originally part of the Central Water and Power Commission, it was bifurcated in 1974 when the Ministry of Irrigation and Power was split, with CWC taking over the water mandate and the Central Electricity Authority the power mandate. CWC is India's premier technical organisation in the field of water resources development and management.
- CWC monitors the live storage of 166 major reservoirs weekly and publishes a "Reservoir Level and Storage Bulletin" every Thursday.
- These 166 reservoirs have a combined live storage capacity of approximately 183 BCM, representing about 65% of the country's total estimated live storage capacity.
- CWC classifies the country into five hydrological storage regions for reporting: Northern, Eastern, Western, Central, and Southern.
- CWC functions under Section 3 of the River Boards Act, 1956, though the River Boards Act itself has never been fully operationalised for inter-state rivers.
Connection to this news: CWC's weekly reservoir bulletin is the primary source for the 42.5% storage figure. The bulletin is used by the Ministry of Agriculture, state irrigation departments, and power utilities to plan water releases, irrigation scheduling, and hydropower generation ahead of the monsoon.
National Water Mission (NWM) under NAPCC
The National Action Plan on Climate Change (NAPCC), launched in 2008, identified water security as one of eight priority missions. The National Water Mission (NWM), coordinated by the Ministry of Jal Shakti, aims to conserve water, minimise wastage, and ensure more equitable distribution across and within states through integrated water resources development and management.
- NAPCC launched in 2008; NWM is one of 8 national missions under it (others include Solar, Energy Efficiency, Sustainable Agriculture, etc.).
- NWM's five goals: comprehensive water database in public domain; promotion of water conservation; focused attention on over-exploited areas; increasing water use efficiency by 20%; promotion of basin-level integrated water resource management.
- NWM is aligned with India's obligations under the UNFCCC, treating reduced water availability as a key climate adaptation challenge.
- India's Integrated Water Resources Management (IWRM) approach under NWM requires river basin-level planning — a principle directly relevant when multiple states share the same depleting reservoir system.
Connection to this news: Pre-monsoon reservoir depletion of this scale is precisely the scenario NWM's data systems and state-level water conservation plans are designed to address. When storage falls below 50% across four of five regions simultaneously, NWM frameworks activate enhanced monitoring and advisory protocols.
Pradhan Mantri Krishi Sinchayee Yojana (PMKSY)
Launched on July 1, 2015, PMKSY operates under the motto "Har Khet Ko Paani, More Crop Per Drop." It is an umbrella scheme implemented by the Ministry of Jal Shakti consolidating earlier schemes like AIBP (Accelerated Irrigation Benefit Programme), Har Khet Ko Pani (HKKP), and Per Drop More Crop (PDMC).
- PMKSY's two main pillars under Ministry of Jal Shakti: AIBP (completing stalled irrigation projects) and HKKP (new field-level water connectivity).
- Per Drop More Crop (PDMC) sub-component promotes drip and sprinkler micro-irrigation; financial assistance at 55% for small/marginal farmers and 45% for others.
- Union Budget 2025-26 allocated ₹8,259.85 crore to PMKSY.
- PMKSY targets creating durable irrigation assets on 5 lakh hectares annually and improving water use efficiency in water-stressed districts.
Connection to this news: With reservoir storage below 50% across major agricultural states, PMKSY's Per Drop More Crop and micro-irrigation push becomes critical for Kharif 2026 — especially in command areas dependent on reservoir-fed canal irrigation. Low storage increases the urgency of farmer-level water efficiency measures to stretch available water across the sowing season.
India Water Act 1974 and State Water Boards
The Water (Prevention and Control of Pollution) Act, 1974, established the Central Pollution Control Board (CPCB) at the national level and State Pollution Control Boards (SPCBs) at the state level, primarily to prevent water body pollution. While its direct focus is pollution prevention rather than water quantity management, it is the foundational statutory framework governing the legal status of water bodies as environmental resources to be protected.
- Water Act 1974: Section 3 establishes CPCB; Section 4 mandates State Boards; Section 17 empowers State Boards to inspect water bodies and take remedial action.
- Amended in 1988 to strengthen enforcement powers.
- Environment Protection Act 1986 (Section 3) gives the Central Government overriding powers to issue directions for environmental protection, which can extend to water body management.
- Reservoir water quality can degrade significantly when levels drop sharply — concentrating pollutants, increasing algal blooms, and reducing dissolved oxygen.
Connection to this news: Severely low reservoir levels increase the concentration of pollutants and nutrients in remaining water, posing water quality risks governed under the Water Act 1974. CPCB and SPCBs may issue alerts and advisories for affected reservoir catchments as storage continues to fall.
Key Facts & Data
- Total live storage capacity of 166 CWC-monitored reservoirs: ~183 BCM
- Storage as of mid-April 2026: ~82 BCM (42.5% of capacity)
- Storage in early February 2026: ~122 BCM (66.6% of capacity)
- Regional breakdown (approximate, early April 2026):
- Northern region: ~43.9% capacity
- Eastern region: ~42.2% capacity
- Western region: ~53.7% capacity (only region above 50%)
- Central region: ~51.8% capacity
- Southern region: ~33.6% capacity (worst affected)
- Rainfall deficiency: ~30% of the country received deficient rain since March 1, 2026
- Hydrological year: The Indian hydrological year runs from June 1 to May 31; April–May is the most critical pre-monsoon drawdown period
- Key uses of major reservoir storage: Irrigation (~70%), hydropower (~20%), drinking water and industrial use (~10%)
- CWC reservoir bulletin frequency: Weekly, published every Thursday
- PMKSY budget 2025-26: ₹8,259.85 crore
- National Water Mission (NWM) water-use efficiency target: 20% improvement