Consider the following statements: 1. In India, the Himalayas are spread over five states only. 2. Western Ghats are spread over five states only. 3. Pulicat Lake is spread over two States only. Which of the statements given above is/are correct?

Updated 11 Apr 2026 · From UPSC Prelims GS Paper I 2017, Q15

Contents15
UPSC Prelims GS2017Geography
  1. A1 and 2 only
  2. B3 only
  3. C2 and 3 only
  4. D1 and 3 only
Show answer

Answer: (B) 3 only

Statement 1 is incorrect:

The Himalayas in India spread over more than five states.

They cover Jammu & Kashmir, Himachal Pradesh, Uttarakhand, Sikkim, West Bengal (Darjeeling hills), Assam, and Arunachal Pradesh.

Some extensions of the Shiwalik range also touch Punjab and Haryana.

So saying 'five states only' is clearly wrong.

Statement 2 is incorrect:

The Western Ghats spread across six states — Gujarat, Maharashtra, Goa, Karnataka, Kerala, and Tamil Nadu — not five.

Statement 3 is correct:

Pulicat Lake, the second largest brackish water lagoon in India, lies on the border of Andhra Pradesh and Tamil Nadu (about 40% in Andhra Pradesh and 60% in Tamil Nadu).

It spreads over exactly two states.

This question requires detailed knowledge of the Atlas and careful observation of how geographical features span across state boundaries.

Since only statement 3 is correct, the answer is (b).

Why this was asked

Pulicat Lake is India's second largest brackish water lagoon, located on the Andhra Pradesh-Tamil Nadu border with about 60% in Tamil Nadu and 40% in Andhra Pradesh.

The question tests precise knowledge of how major physical features span state boundaries - Himalayas cover seven states, Western Ghats cover six states, while Pulicat Lake spans exactly two states.

UPSC is checking if students can distinguish between approximate geographical knowledge and exact administrative boundaries of physical features.

Himalayas: State-wise Coverage

Geography Himalayas five states

Himalayas Across Indian States: Complete Coverage Map

Must know

Himalayas spread across 7+ states in India, not five

Main states: J&K, Himachal, Uttarakhand, Sikkim, West Bengal, Assam, Arunachal

Good to know

Shiwalik extensions touch Punjab and Haryana

Why More Than Five

The Himalayas form India's northern mountain wall, extending from Jammu & Kashmir in the west to Arunachal Pradesh in the east. The question trap assumes students will count only major Himalayan states, but UPSC includes all states with any Himalayan presence.

State-wise Himalayan Coverage

State

Himalayan Range

Key Features

Jammu & Kashmir

Greater Himalayas

Karakoram, highest peaks

Himachal Pradesh

All three ranges

Complete Himalayan system

Uttarakhand

All three ranges

Garhwal & Kumaon divisions

Sikkim

Greater Himalayas

Kanchenjunga region

West Bengal

Darjeeling Hills

Eastern Himalayan foothills

Assam

Shiwalik foothills

Brahmaputra valley margins

Arunachal Pradesh

Eastern Himalayas

Highest state coverage in NE

Punjab

Shiwalik extensions

Minor foothill areas

Haryana

Shiwalik extensions

Minimal coverage

Himalayan Coverage Map

The Himalayas span 9 states from J&K to Arunachal — far more than the 'five states' trap
The Himalayas span 9 states from J&K to Arunachal — far more than the 'five states' trap

Source: StudyIQ — Himalayan Ranges of India, Map, Names, Length, Peaks · www.studyiq.com

Exam traps

Trap: Counting only major Himalayan states (J&K, HP, Uttarakhand, Sikkim, Arunachal) = 5, but UPSC includes West Bengal (Darjeeling) and Assam

Confusion: Forgetting that Shiwalik foothills extend into Punjab and Haryana

Memory error: Mixing up 'five states' with Western Ghats coverage

Western Ghats: Six-State Spread

Geography Western Ghats five states

Western Ghats: Complete Six-State Coverage

Must know

Western Ghats span six states: Gujarat, Maharashtra, Goa, Karnataka, Kerala, Tamil Nadu

Length: 1,600 km along western coast

Good to know

UNESCO World Heritage Site and biodiversity hotspot

State-wise Western Ghats Coverage

State

Local Name

Highest Peak

Key Features

Gujarat

Sahyadri

Girnar Hills

Northern terminus, Dang forests

Maharashtra

Sahyadri

Kalsubai (1,646m)

Longest coverage, numerous hill stations

Goa

Western Ghats

Sonsogor (1,026m)

Smallest state coverage

Karnataka

Malnad region

Mullayanagiri (1,925m)

Coffee plantations, Coorg

Kerala

Sahya Parvatam

Anamudi (2,695m)

Highest peak in Western Ghats

Tamil Nadu

Sahyadri

Doddabetta (2,637m)

Nilgiri Hills, tea gardens

Ecological Significance

28 UNESCO World Heritage Sites within Western Ghats across all six states

39 endemic genera of flowering plants — highest in India

Intercepts Southwest Monsoon, creating rain shadow effect eastward

Source of major rivers: Godavari, Krishna, Kaveri tributaries

Exam traps

Classic trap: Forgetting Goa as separate state — many count it with Maharashtra/Karnataka

Boundary confusion: Tamil Nadu coverage limited to Nilgiris, not entire state border

Number trap: Statement says 'five states only' but actual count is six states

Pulicat Lake: Interstate Lagoon

Geography Pulicat Lake two States

Pulicat Lake: India's Second Largest Brackish Lagoon

Must know

Spreads across Andhra Pradesh (40%) and Tamil Nadu (60%) — exactly two states

Second largest brackish water lagoon in India after Chilika

Good to know

Area: 759 sq km, length 60 km

Geographic Position

Pulicat Lake lies on the Coromandel Coast, straddling the border between Nellore district (Andhra Pradesh) and Tiruvallur district (Tamil Nadu). The lake is separated from the Bay of Bengal by the Sriharikota barrier island, famous for ISRO's satellite launches.

Major Brackish Lagoons Comparison

Lagoon

States

Area (sq km)

Rank

Special Feature

Chilika Lake

Odisha only

1,165

1st

Largest brackish lagoon

Pulicat Lake

AP + Tamil Nadu

759

2nd

Sriharikota location

Kolleru Lake

AP only

308

3rd

Freshwater, not brackish

Vembanad Lake

Kerala only

2,033

-

Largest lake by area (fresh+brackish)

Pulicat Lake Location

Pulicat Lake spans exactly two states — the 60-40 split makes both states significant
Pulicat Lake spans exactly two states — the 60-40 split makes both states significant

Source: PMF IAS — Pulicat bird sanctuary - PMF IAS · www.pmfias.com

Ecological Importance

Flamingo sanctuary — major wintering ground for migratory birds

Brackish water ecosystem — mix of fresh and saline water

Supports fishing communities in both states

Ramsar Convention candidate for wetland protection

Exam traps

State counting: Easy to remember as 'AP lake' and forget Tamil Nadu has 60% share

Lake confusion: Don't mix with Kolleru Lake (AP only) or Chilika (Odisha only)

Size ranking: Second largest brackish lagoon, but not second largest lake overall

Indian Lakes: Types & Distribution

Geography

Indian Lakes: Classification & Interstate Distribution

Must know

Brackish lagoons: Chilika (Odisha), Pulicat (AP+TN), Vembanad (Kerala)

Interstate lakes: Pulicat (AP+TN), Loktak (Manipur), Wular (J&K)

Good to know

Largest by type: Vembanad (area), Chilika (brackish), Wular (freshwater Kashmir)

Lake Classification System

# Indian Lakes
## By Water Type
- Freshwater
- Brackish
- Saline
## By Origin
- Natural
- Artificial/Reservoir
- Lagoon
## By State Coverage
- Single State
- Interstate
- International
## By Ecology
- Ramsar Sites
- Bird Sanctuaries
- Wetland Reserves

State-wise Lake Distribution Pattern

Single State Lakes

Interstate Lakes

Key Feature

Chilika (Odisha)

Pulicat (AP+TN)

Most brackish lagoons single-state

Dal (J&K)

Govind Sagar (HP+Punjab)

Himalayan lakes often single-state

Loktak (Manipur)

Hirakud (Odisha+Chhattisgarh)

Reservoirs can span states

Kolleru (AP)

Sardar Sarovar (Gujarat+MP+Maharashtra)

Major projects create interstate water bodies

Exam traps

Interstate assumption: Most lakes are single-state; Pulicat is exception among major lagoons

Size vs rank confusion: Largest lake ≠ largest brackish lagoon ≠ most ecologically important

Reservoir vs natural: UPSC mixes natural lakes with artificial reservoirs in questions