Which one of the following pairs of States of India indicates the easternmost and westernmost State?

Updated 11 Apr 2026 · From UPSC Prelims GS Paper I 2015, Q19

Contents12
UPSC Prelims GS2015Geography
  1. AAssam and Rajasthan
  2. BArunachal Pradesh and Rajasthan
  3. CAssam and Gujarat
  4. DArunachal Pradesh and Gujarat
Show answer

Answer: (D) Arunachal Pradesh and Gujarat

As per NCERT Class 11 (India: Physical Environment, Page 2):

'The mainland of India extends from Kashmir in the north to Kanyakumari in the south and Arunachal Pradesh in the east to Gujarat in the west.'

So the easternmost state is Arunachal Pradesh and the westernmost state is Gujarat.

Common mistakes:

  • Many students confuse Assam with Arunachal Pradesh — but Assam lies to the west of Arunachal Pradesh.
  • Similarly, Rajasthan might seem westernmost on a casual glance, but Gujarat's Kutch region extends further west than Rajasthan.

Remember this simple fact:

  • East = Arunachal Pradesh
  • West = Gujarat
  • North = Jammu & Kashmir
  • South = Kanyakumari (Tamil Nadu).
Why this was asked

Arunachal Pradesh extends furthest east due to its border with Myanmar and China, while Gujarat's Kutch region extends furthest west into the Arabian Sea.

Students commonly confuse Assam with Arunachal Pradesh for the east, and Rajasthan with Gujarat for the west, because they don't know the precise geographic boundaries of these border states.

Extreme Points of India

Geography easternmost westernmost Arunachal Pradesh Gujarat

Extreme Points of India: Cardinal Boundaries & UPSC Traps

Must know

Easternmost: Arunachal Pradesh (mainland India)

Westernmost: Gujarat (Kutch region extends furthest west)

Northernmost: Jammu & Kashmir

Southernmost: Kanyakumari, Tamil Nadu (mainland)

Good to know

Assam lies west of Arunachal Pradesh — common UPSC trap

NCERT Foundation

India's mainland extends in four cardinal directions from specific states. The NCERT Class 11 clearly states: 'Kashmir in the north to Kanyakumari in the south and Arunachal Pradesh in the east to Gujarat in the west.' This is the authoritative source for UPSC questions on India's extreme points.

Four Extreme Points

Direction

State/Place

Key Geographic Feature

Common Confusion

North

Jammu & Kashmir

Siachen Glacier region

None

South

Tamil Nadu (Kanyakumari)

Cape Comorin

Students forget it's mainland southernmost

East

Arunachal Pradesh

Kibithu near China border

Often confused with Assam

West

Gujarat

Kutch district

Rajasthan appears western but isn't extreme

India's Extreme Points

Arunachal Pradesh extends furthest east, while Gujarat's Kutch reaches furthest west
Arunachal Pradesh extends furthest east, while Gujarat's Kutch reaches furthest west

Source: x.com — 🎯The four extreme points of India are- 1. Southernmost Point ... · x.com

Exam traps

Assam vs Arunachal Pradesh: Assam lies to the west of Arunachal Pradesh — not the easternmost state

Rajasthan vs Gujarat: Gujarat's Kutch region extends further west than any part of Rajasthan

Southernmost confusion: Kanyakumari is mainland India's southernmost point; Indira Point (Andaman) is the absolute southernmost

Mnemonic trap: 'RING' doesn't work — it's Rajasthan-Indira Point-Nagaland-Gujarat but Nagaland isn't northernmost

Northeast Indian States Geography

Geography Arunachal Pradesh Assam

Northeast States: Locations & Border Geography

Must know

Arunachal Pradesh: Easternmost state, borders China & Myanmar

Assam: Central northeast state, surrounds Meghalaya

Good to know

Seven Sisters: Assam, Meghalaya, Tripura, Mizoram, Manipur, Nagaland, Arunachal Pradesh

Sikkim is the 8th northeast state (not a Sister state)

Regional Context

The Northeast comprises eight states connected to mainland India through the narrow Siliguri Corridor (Chicken's Neck). Arunachal Pradesh is the largest by area and forms India's eastern frontier with China and Myanmar.

Key Northeast States Comparison

State

Location

International Borders

Capital

Special Feature

Arunachal Pradesh

Easternmost India

China, Myanmar

Itanagar

Largest northeast state

Assam

Central northeast

Bhutan

Dispur

Tea gardens, Brahmaputra valley

Nagaland

Eastern border

Myanmar

Kohima

Smallest northeast state

Manipur

Southeast

Myanmar

Imphal

Loktak Lake

Sikkim

Northern hills

China, Bhutan

Gangtok

Not a Sister state

Northeast Organization

# Northeast India (8 States)
## Seven Sisters
- Arunachal Pradesh
- Assam
- Meghalaya
- Manipur
- Mizoram
- Nagaland
- Tripura
## Added Later
- Sikkim (1975)
## Eastern Border
- Arunachal Pradesh
- Nagaland
- Manipur
- Mizoram
## Northern Border
- Arunachal Pradesh
- Sikkim

Western States Geography

Geography Gujarat Rajasthan

Western States: Rajasthan vs Gujarat Positioning

Must know

Gujarat: Westernmost state due to Kutch region extension

Rajasthan: Largest state by area but not westernmost

Good to know

Arabian Sea coastline: Gujarat has longest western coast

Both states share Thar Desert region

Geographic Context

While Rajasthan is India's largest state, Gujarat extends furthest west due to its Kutch district. Gujarat also has extensive Arabian Sea coastline, making it strategically important for western trade routes and ports.

Rajasthan vs Gujarat

Aspect

Rajasthan

Gujarat

Area Rank

1st (largest state)

5th largest

Western Extension

Not extreme west

Westernmost (Kutch)

Coastline

Landlocked

1,600 km Arabian Sea coast

Capital

Jaipur

Gandhinagar

Major Desert

Thar Desert (main area)

Kutch desert region

International Border

Pakistan

Pakistan (short border)

Western India Geography

Gujarat's Kutch district extends furthest west despite Rajasthan being the larger state
Gujarat's Kutch district extends furthest west despite Rajasthan being the larger state

Source: India Map — Gujarat Map | Map of Gujarat - State, Districts Information and Facts · www.mapsofindia.com

Exam traps

Size illusion: Rajasthan is largest by area but Gujarat extends furthest west

Kutch importance: Gujarat's westernmost position is due specifically to Kutch district

Desert confusion: Both have desert regions, but this doesn't determine western extremity