7 sister states and Sikkim | Geography of Northeast India

The “Seven Sister States” are seven states in the extreme northeastern part of India. These states are – Meghalaya, Assam, Arunachal Pradesh, Nagaland, Manipur, Mizoram, and Tripura. Northeast India comprises these seven states plus Sikkim which is sometimes called the brother of the seven sisters.

Geography of Northeast India

Which is the largest state in Northeast India?

Arunachal Pradesh is the largest state in northeast India. It has an area of around 83,750 sq km. The second largest state in Assam with an area of around 78,440 sq km.

Which is the most populated state in Northeast India?

Assam is the most populated state in northeast India. The state recorded a population of 3.12 Crores in the 2011 census. It should be over 3.5 Crores now.

Seven sister states of India and their capitals

StateArea (sq km)Capital city
1Arunachal Pradesharound 83,750 sq kmItanagar
2Assamaround 78,440 sq kmDispur
3Manipuraround 22,325 sq kmImphal
4Meghalayaaround 22,720 sq kmShillong
5Mizoramaround 21,100 sq kmAizawl
6Nagalandaround 16,580 sq kmKohima
7Tripuraaround 10,485 sq kmAgartala


AreaCapital city
7,096 sq kmGangtok

Which is the largest city in Northeast India?

Guwahati in Assam is the largest city in northeast India.

Top 5 largest cities in Northeast India

  1. Guwahati, Assam
  2. Agartala, Tripura
  3. Imphal, Manipur
  4. Shillong, Meghalaya
  5. Dimapur, Nagaland
View of Guwahati, Assam in northeastern India
Guwahati, Assam

Which is the highest mountain peak in Northeast India?

Kanchenjunga standing at an elevation of 8,586 m is the highest mountain in northeast India. It is also the third highest mountain in the entire world.


The Northeastern India is mostly mountainous/hilly. The plains are present mostly in the state of Assam and Tripura. The region is geologically active and prone to earthquakes, landslides and floods. The climate varies from tropical to temperate, depending on the altitude and latitude.

Major Rivers in Northeast India

Some major rivers in Northeaster India are Brahmaputra, Dibang, Barak, Myntdu, Tiau, Doyang, Longai, and Teesta.

Forest cover and wildlife

Over 60% of northeast India is covered in forests. The most heavily forested state in the region is Mizoram. It has a forest cover of 84.53% (2021 survey). In these forests many charismatic wildlife species thrive. Some of them are Tiger, Indian elephant, Indian rhino, Clouded leopard, Leopard, Red panda, etc.

(Also read: Forest cover in India (2023) – important statistics)

Which is the most densely populated NE Indian state?


Which is the least densely populated NE Indian state?

Arunachal Pradesh

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