Where
Jammu and Kashmir’s Bandipore district, about 50 km northwest of Srinagar.
Its size, now vs. then
Down from about 217.6 sq km in 1911 to roughly 130 sq km today.
Its job
Soaks up Jhelum River floodwater, protecting the Kashmir Valley below.
Its island
Zaina Lank, built by a sultan in 1444 — still standing today.
The Basics
India’s Largest Freshwater Lake
- Location: in Jammu and Kashmir‘s Bandipore district — India’s largest freshwater lake.
- Position: sits about 50 kilometres northwest of Srinagar, at the foot of the Haramuk Mountain.
- The Jhelum: the lake is fed by, and flows into, the Jhelum River. It plays a key role in how that river behaves across the whole Kashmir Valley.
- Flood control: Wular acts like a giant sponge, soaking up Jhelum floodwater before it reaches towns downstream. It was named a Ramsar wetland in 1990.
Worked example: imagine heavy rain sending a surge of water down the Jhelum. Instead of that surge slamming straight into Srinagar, Wular Lake absorbs much of it first, like a bowl catching water before it overflows onto the floor.
True or False: Wular Lake is India’s largest freshwater lake.
How It Formed, and Its Island
A Sultan’s Island in a Tectonic Lake
- How it formed: movement deep in the Earth’s crust shaped this lake. People believe it’s what’s left of an older, much bigger lake called Satisar.
- Its size swings a lot: Wular can shrink to about 30 square kilometres, or grow to as much as 260, depending on the season.
- Zaina Lank: in 1444, the Kashmiri sultan Zain-ul-Abidin had an artificial island built in the middle of the lake. It still stands today, even as the lake around it has shrunk a great deal.
Its Shrinking Size
A Lake That Lost Nearly Half Its Water
- 1911 records: official records put the lake and its marshes together at about 217.6 square kilometres.
- Today’s size: before recent repair work, the lake itself had shrunk to roughly 130 square kilometres — and that’s not even counting the lost marshland.
- Why it shrank: tree farms planted decades ago for wood, plus mud buildup, land grabs, and dirty sewage, all ate into the open water. Together, they weakened the lake’s power to stop floods.
Think it through. Why would planting trees for timber end up shrinking a lake?
Show the explanation
Willow trees were planted directly in Wular’s shallow, marshy edges, because that wet ground suited them well. As the trees grew and spread, their roots and trunks took up space that used to be open water. Multiply that across decades and many plantations, and a real chunk of the lake simply stopped being lake — it became dry, tree-covered land instead.
The 2014 Floods
When the Flood Defence Failed
- 2014 floods: during Kashmir’s terrible September 2014 floods, Wular’s mud buildup had already cut deep into how much water it could hold.
- The result: a narrow, clogged outflow channel backed up Jhelum floodwater instead of soaking it up, making the flooding downstream worse.
- The lesson: it showed exactly what happens when the flood defence described earlier in this article stops working properly.
True or False: Wular Lake fully absorbed the 2014 Kashmir floods, preventing any worsening downstream.
Its Birds and Fish
A Winter Refuge for Migratory Birds
- Bird habitat: Wular’s marshes and open water draw large numbers of migrating waterbirds each winter — part of why it earned Ramsar status.
- A fishery too: more than 8,000 fishing families depend on Wular, which supplies roughly 60% of all fish caught in the Kashmir Valley.
- Vanishing native fish: native Schizothorax snow trout have declined sharply here. A 2025 government check found they’re increasingly being replaced by carp, a fish that isn’t native to the lake.
The Real Exam Trap on This Topic
- The trap: exams bundle Wular with other major Indian lakes in the same matching question, testing whether you actually know each lake’s own river link.
- The real test: the Jhelum genuinely does pass through Wular. But nearby-sounding claims about other lakes’ rivers are often wrong — planted on purpose to catch a rushed “sounds right” answer.
- How to prepare: check each lake-river pairing on its own. Don’t assume a whole list of statements is either all true or all false.
- UPSC CSP 2023 Tested three statements together: Jhelum passing through Wular, Krishna directly feeding Kolleru, and Gandak’s meandering forming Kanwar Lake. Answer: only two hold up. Jhelum-Wular and Gandak-Kanwar are correct; Krishna does not directly feed Kolleru Lake. View the full UPSC CSP 2023 GS Paper I question → See also IndGeo0130 — Lakes of India for how Wular compares to Kolleru and Kanwar.
Five Square Kilometres Reclaimed (2026)
Five Square Kilometres Reclaimed (2026)
- The numbers: by April 2026, repair work at Wular had won back about 5 square kilometres of badly silted lake area, with 1.31 lakh willow trees removed. (Source: Kashmir Observer)
- The dredging: nearly 78.43 lakh cubic metres of mud have been dug out to bring back the lake’s ability to hold water. (Source: Kashmir Observer)
- Why it matters here: it’s a real, measurable reversal of the same tree-farm and mud-buildup decline described earlier in this article.
Quick Q&A
Q: What kind of lake is Wular, and how did it form?
A: A tectonic lake — formed by movement in the Earth’s crust, believed to be what’s left of an older, bigger lake called Satisar.
Q: What’s Zaina Lank, and who built it?
A: An artificial island in the middle of Wular Lake, built in 1444 by the Kashmiri sultan Zain-ul-Abidin.
Q: Why did Wular’s flood defence fail during the 2014 Kashmir floods?
A: Years of mud buildup had already narrowed its outflow channel, so it backed up floodwater instead of absorbing it.
Q: Which Kashmir Valley fish is being edged out at Wular?
A: The native Schizothorax snow trout, increasingly replaced by non-native carp.
✅ Test Yourself
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