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With reference to river Teesta, consider the following statements:

  1. The source of river Teesta is the same as that of Brahmaputra but it flows through Sikkim.
  2. River Rangeet originates in Sikkim and it is a tributary of river Teesta.
  3. River Teesta flows into the Bay of Bengal on the border of India and Bangladesh.
Which of the statements given above is/are correct?
  1. 1 and 3 only
  2. 2 only
  3. 2 and 3 only
  4. 1, 2 and 3

Explanation

Statement 1 is incorrect, and statement 3 is incorrect
  • The Teesta River originates from the Pahunri (or Teesta Kangse) glacier in the Eastern Himalayas in the state of Sikkim, India. It flows southward through the Indian states of Sikkim and West Bengal, eventually entering Bangladesh.
  • In Bangladesh, it merges with the Brahmaputra River (known locally as the Jamuna River).

Additional Information

  • The Brahmaputra basin spreads over Tibet (China), Bhutan, India, and Bangladesh.
  • The total length of the Brahmaputra River is 2,900 km, and in India, it is 916 km.
  • In India, the basin spreads over Arunachal Pradesh, Assam, West Bengal, Meghalaya, Nagaland, and Sikkim, which is nearly 5.9 % of the total geographical area.
  • The Brahmaputra River originates in the Chemayungdung glacier of the Kailash range near Mansarovar Lake in Tibet, where it is called the Tsangpo (‘the purifier’) or Yarlung Zangbo.
  • It carves a deep gorge in the Central Himalayas near Namcha Barwa and turns southwards. Then, it
  • enters India through Arunachal Pradesh as Siang or Dihang.
  • After receiving its main left bank tributaries, Dibang (or Sikang) and Lohit, the river is then known
  • as the Brahmaputra.
  • The Brahmaputra enters Bangladesh as the Jamuna River, where it joins the Ganga (Padma in Bangladesh) and continues to flow as the Padma.
  • Padma finally joins Meghna River, which falls into the Bay of Bengal.
  • The confluence of the Ganges, Brahmaputra, and Meghna Rivers forms the Sundarbans delta.
  • Right bank tributaries: Rango Tsangpo (in Tibet), Subansiri, Kameng (Jiabharali), Dhansiri, Manas, Sankosh, Teesta.
  • Left bank tributaries: Lohit, Dibang, Burhidihing, Disang, Dikhow, Dhansiri, Kopili.

Map of Brahmaputra River Basin spanning China (Tibet), India, Bangladesh, and Myanmar, highlighting major rivers, dams, and cities. Key features include Ranganadi Dam, Subansiri Lower Dam, Deepor Beel, and cities like Gangtok, Itanagar, and Dispur, with a smaller inset map showing basin location in northeastern India.

Statement 2 is correct
  • Major tributaries of the Teesta River: Rangpo River, the Rangit River, and the Great Rangit River.
  • The Rangit river and its tributaries originate in the Talung glacier in West Sikkim and after flowing for about 60 km, joins Teesta below Malli near the border of Sikkim with West Bengal.
Answer: (b) 2 only; Difficulty Level: Hard
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