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Relevance: GS-III (Environment & Ecology, Biodiversity Conservation, Water Bodies); GS-I (Geography) Source: WMDA / Ecology Reports, 2026

1 · What is the news in simple words?

In a proud moment for environmental conservation, Kashmir’s Manasbal Lake—recognized as India’s deepest natural freshwater lake—is bouncing back to life!
Years of invasive weed growth, raw village sewage, and falling water levels had severely damaged its ecosystem. However, after a massive cleanup drive by the Wular-Manasbal Development Authority (WMDA), nature has responded brilliantly. Between December 2025 and January 2026, thousands of rare migratory birds returned, prompting officials to host a special winter bird-watching festival.

2 · How the Lake Was Revived (Step-by-Step Flow)

Step 1: The Crisis (Ecological Degradation)
Heavy siltation, raw sewage, and thick aquatic weeds blocked sunlight and reduced bird visits.
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Step 2: Scientific Cleanup (Active Intervention)
Authorities dredged 70,000 sq ft of lakebed, extracted 7,200 cubic meters of weeds, and built a new Sewage Treatment Plant (STP).
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Step 3: The Revival (Biodiversity Returns)
Over 46 rare migratory bird species returned, restoring local eco-tourism and natural marine balance!

3 · Core Concepts and Facts

The Profile
India’s Deepest Lake
Located in Ganderbal, central Kashmir, Manasbal reaches a maximum depth of 43 feet. It spans 3.5 km by 1.5 km and is famous for its clean water and summer lotus blossoms.
Avian Biodiversity
46+ Bird Species
The cleanup attracted rare birds across 23 biological families, including the White-Headed Duck, Mallard, Long-Eared Owl, Golden Eagle, and Horned Grebe.
Pollution Shield
Stopping Raw Sewage
To permanently protect the lake, officials are establishing a dedicated Sewage Treatment Plant alongside a 1-acre solid waste management facility near the shore.
Strategic Value
A National Model
This successful revival serves as a scalable model for the National Plan for Conservation of Aquatic Eco-systems (NPCA), proving damaged wetlands can be fully restored.

UPSC Prelims Quick Facts
Water Budgeting A scientific mathematical study balancing water inflow against outflow (usage/evaporation) to ensure the lake always maintains a safe minimum water level.
Central Asian Flyway (CAF) Kashmir’s wetlands act as a critical winter resting bottleneck along the CAF for migratory birds escaping freezing temperatures in Siberia and the Arctic.
JKWRRA J&K Water Resources Regulatory Authority. The statutory legal body that monitors water usage and enforces the scientific water budget for the lake.
WPA, 1972 Protection Rare visiting waterfowl like the White-Headed Duck receive strict legal protection under the schedules of the Wildlife Protection Act, 1972, making hunting a severe crime.

MCQ Practice Question
Q. With reference to Manasbal Lake and wetland conservation in India, consider the following statements:

  1. Manasbal Lake, located in the Union Territory of Jammu & Kashmir, is recognized as the deepest natural freshwater lake in India.
  2. The wetland systems of Kashmir serve as a critical wintering bottleneck along the Central Asian Flyway (CAF) for migratory birds originating from Siberia and the Arctic.
  3. Scientific ‘Water Budgeting’ for Manasbal Lake is executed directly by the Central Water Commission (CWC) from New Delhi without local involvement.

Which of the statements given above is/are correct?
(a) 1 and 2 only    (b) 2 and 3 only    (c) 1 only    (d) 1, 2 and 3

Answer: (a) 1 and 2 only

  • Statement 1 — Correct: Situated in the Ganderbal district of central Kashmir, Manasbal reaches a depth of 43 feet, making it India’s deepest natural freshwater lake.
  • Statement 2 — Correct: Kashmir’s wetlands provide indispensable winter feeding and roosting grounds along the Central Asian Flyway (CAF) for birds escaping northern Siberian winters.
  • Statement 3 — Incorrect (the trap): Scientific water budgeting is executed locally by the regional statutory authority—the J&K Water Resources Regulatory Authority (JKWRRA)—in coordination with the local development authority, not directly by the CWC!
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