Consider the following statements: 1. Jhelum River passes through Wular Lake. 2. Krishna River directly feeds Kolleru Lake 3. Meandering of Gandak River formed Kanwar Lake. How many of the statements given above are correct?
Contents18
- AOnly one
- BOnly two
- CAll three
- DNone
Show answer
Answer: (A) Only one
Statement 1 is correct:
The Jhelum River flows through Wular Lake in Kashmir, which is the main source of water for the lake.
Statement 2 is wrong:
Kolleru Lake is fed by seasonal rivers Budameru and Tamleru — not directly by the Krishna River.
It lies between the Godavari and Krishna deltas.
Statement 3 is wrong:
Kanwar Lake in Bihar is formed from the Burhi Gandak river (a tributary of the Ganga), not the Gandak river.
Only one is correct.
Answer is (a).
River-lake relationships are tested frequently because they involve both physical geography concepts and current environmental issues like wetland conservation.
The question tests precise knowledge of tributary systems versus main rivers - many students confuse Gandak with Burhi Gandak, or assume major rivers directly feed all nearby lakes.
Wular Lake & Jhelum River
Geography Jhelum River Wular Lake
Wular Lake & Jhelum River: Kashmir's Key Water Bodies
Wular Lake is India's largest freshwater lake, located in Kashmir
Jhelum River flows through Wular Lake — this connection is frequently tested
Both are part of the Indus river system in J&K
Wular Lake is a Ramsar Wetland Site since 1990
The Connection
Wular Lake sits in the Jhelum River's course in Kashmir valley. The river enters the lake, expands into this large water body, then continues its flow — making Wular essentially a natural expansion of the Jhelum system.
Key Facts
Feature | Wular Lake | Jhelum River |
|---|---|---|
Location | Bandipora district, Kashmir | Originates in Kashmir, flows to Pakistan |
Significance | India's largest freshwater lake | Major tributary of Indus River |
Area | Approximately 130-260 sq km (seasonal) | 725 km total length |
Status | Ramsar Site (1990) | Trans-boundary river (India-Pakistan) |
Location Map
Source: CivilsDaily — In news: Wular Lake - Civilsdaily · www.civilsdaily.com
Trap: Confusing Wular with Dal Lake — Dal is in Srinagar, Wular is in Bandipora
Trap: Thinking Jhelum only feeds Wular — it actually flows through the lake
Trap: Mixing up India's largest freshwater lake (Wular) with largest lake overall (Chilika - brackish)
Kolleru Lake & Delta Rivers
Geography Krishna River Kolleru Lake
Kolleru Lake: Fed by Seasonal Rivers, Not Krishna Directly
Kolleru Lake lies between Godavari and Krishna deltas in Andhra Pradesh
Fed by Budameru and Tamleru rivers — NOT directly by Krishna River
India's largest shallow freshwater lake and Ramsar Site
Experiences seasonal flooding during monsoon
Location & Drainage
Kolleru Lake sits in the coastal plain between Godavari and Krishna deltas in Andhra Pradesh. Despite being near the Krishna River, it receives water primarily from two smaller seasonal rivers — Budameru and Tamleru — which drain the surrounding catchment area.
Kolleru Lake Details
Aspect | Details |
|---|---|
Location | West Godavari & Krishna districts, Andhra Pradesh |
Primary water source | Budameru & Tamleru rivers (seasonal) |
Position | Between Godavari & Krishna deltas |
Type | Shallow freshwater lake |
Area | 245 sq km (varies seasonally) |
Status | Ramsar Wetland Site since 2002 |
Key feature | Important bird sanctuary with migratory species |
Delta Position
Source: Newscoop IAS — Kolleru Lake: Map & Location | Features » Newscoop IAS · newscoop.co.in
Major Trap: Assuming Krishna River directly feeds Kolleru because it's nearby — it's actually Budameru & Tamleru
Trap: Confusing with Pulicat Lake (also in Andhra Pradesh but brackish water)
Trap: Thinking it's in Krishna delta — it's between Godavari and Krishna deltas
Kanwar Lake & Gandak Rivers
Geography Gandak River Kanwar Lake
Kanwar Lake: Formed by Burhi Gandak, Not Main Gandak River
Kanwar Lake in Bihar is formed by Burhi Gandak River — NOT the main Gandak River
Burhi Gandak is a tributary of Ganga, separate from Gandak River
Asia's largest freshwater oxbow lake formed by river meandering
Located in Begusarai district, Bihar
Formation Process
Kanwar Lake is an oxbow lake formed when the Burhi Gandak River changed its course due to meandering. Over time, the old river bend got cut off from the main channel, creating this large wetland in Bihar's plains.
Gandak vs Burhi Gandak
River | Origin | Course | Connection to Kanwar Lake |
|---|---|---|---|
Gandak River | Nepal Himalayas | Flows through Nepal & Bihar to join Ganga | NO connection to Kanwar Lake |
Burhi Gandak | Chautarwa Chaur, Bihar | Entirely within Bihar, tributary of Ganga | Created Kanwar Lake through meandering |
Kanwar Lake Features
Asia's largest freshwater oxbow lake covering approximately 68 sq km
Located in Begusarai district, Bihar
Important bird sanctuary with resident and migratory species
Ramsar Wetland Site since 2020
Oxbow Lake Formation
%%{init: {"flowchart": {"wrappingWidth": 460}}}%%
flowchart TD
s1["`**River Meandering**
Burhi Gandak develops curved bends in flat terrain`"]
s2["`**Neck Narrowing**
Water erodes the narrow neck between bends`"]
s3["`**Cutoff Formation**
River breaks through, abandoning the old curved path`"]
s4["`**Lake Creation**
Old bend becomes isolated water body - Kanwar Lake`"]
s1 --> s2
s2 --> s3
s3 --> s4Major Trap: Confusing Gandak River with Burhi Gandak — they are completely different rivers
Trap: Thinking main Gandak River formed Kanwar — it was the Burhi Gandak tributary
Trap: Missing that 'Burhi' means 'old' in local language — Burhi Gandak is the 'old Gandak' channel
Indian Lakes: Types & Formation
Geography
Classification of Indian Lakes: Formation & Water Type
Indian lakes form through tectonic, glacial, fluvial, and coastal processes
Freshwater lakes mostly in mountains & plains; saltwater in deserts & coasts
Oxbow lakes common in Ganga plains; lagoons along eastern coast
Lake Classification
# Indian Lakes
## By Formation
- Tectonic (Dal, Wular)
- Glacial (Himalayan)
- Fluvial (Oxbow)
- Coastal (Lagoons)
- Volcanic (Lonar)
## By Water Type
- Freshwater (Wular, Loktak)
- Brackish (Chilika, Pulicat)
- Saltwater (Sambhar, Pachpadra)
## By Origin
- Natural
- Artificial (Reservoirs)
- Modified NaturalMajor Indian Lakes
Lake | State | Type | Formation | Key Feature |
|---|---|---|---|---|
Wular | J&K | Freshwater | Tectonic | Largest freshwater lake |
Dal | J&K | Freshwater | Tectonic | Tourism, houseboats |
Chilika | Odisha | Brackish | Coastal lagoon | Largest overall lake |
Kolleru | Andhra Pradesh | Freshwater | Natural depression | Between two deltas |
Kanwar | Bihar | Freshwater | Oxbow (fluvial) | Asia's largest oxbow |
Loktak | Manipur | Freshwater | Natural | Floating islands (phumdis) |
Sambhar | Rajasthan | Saltwater | Tectonic | Largest saltwater lake |
Pulicat | Tamil Nadu/Andhra Pradesh | Brackish | Coastal lagoon | Second largest lagoon |
River-Lake Connections in India
Geography
How Rivers Connect to Lakes: Direct vs Indirect Feeding
Rivers may flow through, into, or near lakes — each creates different relationships
Seasonal rivers often more important than major rivers for lake water supply
Proximity doesn't mean direct feeding — check actual water sources
Types of River-Lake Relationships
Relationship Type | Description | Example | UPSC Trap |
|---|---|---|---|
Flows Through | River passes through lake as part of its course | Jhelum through Wular Lake | Assuming river only 'feeds' the lake |
Direct Feeding | River terminates in lake or is main water source | Narmada into Sardar Sarovar | Confusing with seasonal tributaries |
Indirect Feeding | Tributaries or seasonal streams feed the lake | Budameru/Tamleru to Kolleru | Assuming nearby major river is the source |
Nearby but Separate | River flows near lake but no direct connection | Ganga near various Bihar lakes | Assuming proximity = connection |
Former Connection | Lake formed by old river course (oxbow) | Burhi Gandak created Kanwar | Confusing with current main river |
Geography Trap: Just because a major river flows nearby doesn't mean it feeds the lake directly
Naming Trap: Similar river names (Gandak vs Burhi Gandak) often hide the correct connection
Delta Trap: Lakes between two deltas aren't necessarily fed by the main delta rivers
Seasonal Trap: Small seasonal rivers can be more important water sources than large perennial ones