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	'''Teesta River''' ({{Langx\|bn\|তিস্তা\|Tistā}}) ([[Limbu language\|Limbu]]: {{Lang\|lif\| ᤋᤡᤘᤠ᤺}}, '''Teewaa'''; in Classical Limbu) is a {{cvt\|414\|km}} long river that rises in the [[Pauhunri\|Pauhunri Mountain]] of eastern [[Himalayas]], flows through the [[Indian states]] of [[Sikkim]] and [[West Bengal]] and subsequently enters [[Bangladesh]] through [[Rangpur Division\|Rangpur]] division. In Bangladesh, it merges with [[Jamuna River]] which after meeting some other major rivers of the [[Bengal delta]] finally falls into the [[Bay of Bengal]].<ref name=Mullick_al2011>{{cite journal \|last1=Mullick \|first1=M. R. A. \|last2=Babel \|first2=M. S. \|last3=Perret \|first3=S. R. \|name-list-style=amp \|year=2011 \|title=Discharge-based economic valuation of irrigation water: Evidence from the Teesta River, Bangladesh \|pages=481−492 \|journal=Irrigation and Drainage \|volume=60 \|issue=4 \|doi=10.1002/ird.597 \|bibcode=2011IrrDr..60..481M }}</ref> It drains an area of {{cvt\|12540\|km2}}.<ref name=Rahaman_WP2020>{{cite journal \|last1=Rahaman \|first1=M. M. \|last2=Mamun \|first2=A. A. \|name-list-style=amp \|year=2020 \|title=Hydropower development along Teesta river basin: opportunities for cooperation \|pages=641–657 \|journal=Water Policy \|volume=22 \|issue=4 \|doi=10.2166/wp.2020.136 \|doi-access=free \|bibcode=2020WaPol..22..641R }}</ref> In [[India]], the Teesta River flows through [[North Sikkim district\|Mangan District]], [[East Sikkim district\|Gangtok District]], [[Pakyong District]], [[Kalimpong district]], [[Darjeeling District]], [[Jalpaiguri District]], and [[Cooch Behar District]] as well as the cities of [[Rangpo]], [[Jalpaiguri]], and [[Mekhliganj]]. In Bangladesh, it flows through [[Lalmonirhat District]], [[Rangpur District]], [[Kurigram District]] and [[Gaibandha District]]. It joins the [[Jamuna River]] at [[Phulchhari Upazila]] in Bangladesh. {{cvt\|305\|km}} of the river lies in India and {{cvt\|109\|km}} in Bangladesh. The Teesta is the largest river of Sikkim and second largest river of West Bengal after the [[Ganges]].		'''Teesta River''' ({{Langx\|bn\|তিস্তা\|Tistā}}) ([[Limbu language\|Limbu]]: {{Lang\|lif\| ᤋᤡᤘᤠ᤺}}, '''Teewaa'''; in Classical Limbu) is a {{cvt\|414\|km}} long river that rises in the [[Pauhunri\|Pauhunri Mountain]] of eastern [[Himalayas]], flows through the [[Indian states]] of [[Sikkim]] and [[West Bengal]] and subsequently enters [[Bangladesh]] through [[Rangpur Division\|Rangpur]] division. In Bangladesh, it merges with [[Jamuna River]] which after meeting some other major rivers of the [[Bengal delta]] finally falls into the [[Bay of Bengal]].<ref name=Mullick_al2011>{{cite journal \|last1=Mullick \|first1=M. R. A. \|last2=Babel \|first2=M. S. \|last3=Perret \|first3=S. R. \|name-list-style=amp \|year=2011 \|title=Discharge-based economic valuation of irrigation water: Evidence from the Teesta River, Bangladesh \|pages=481−492 \|journal=Irrigation and Drainage \|volume=60 \|issue=4 \|doi=10.1002/ird.597 \|bibcode=2011IrrDr..60..481M }}</ref> It drains an area of {{cvt\|12540\|km2}}.<ref name=Rahaman_WP2020>{{cite journal \|last1=Rahaman \|first1=M. M. \|last2=Mamun \|first2=A. A. \|name-list-style=amp \|year=2020 \|title=Hydropower development along Teesta river basin: opportunities for cooperation \|pages=641–657 \|journal=Water Policy \|volume=22 \|issue=4 \|doi=10.2166/wp.2020.136 \|doi-access=free \|bibcode=2020WaPol..22..641R }}</ref> In [[India]], the Teesta River flows through [[North Sikkim district\|Mangan District]], [[East Sikkim district\|Gangtok District]], [[Pakyong District]], [[Kalimpong district]], [[Darjeeling District]], [[Jalpaiguri District]], and [[Cooch Behar District]] as well as the cities of [[Rangpo]], [[Jalpaiguri]], and [[Mekhliganj]]. In Bangladesh, it flows through [[Lalmonirhat District]], [[Rangpur District]], [[Kurigram District]] and [[Gaibandha District]]. It joins the [[Jamuna River]] at [[Phulchhari Upazila]] in Bangladesh. {{cvt\|305\|km}} of the river lies in India and {{cvt\|109\|km}} in Bangladesh. The Teesta is the largest river of Sikkim and second largest river of West Bengal after the [[Ganges]].

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{{short description|River that flows from the eastern Himalayas to the Bay of Bengal}}
{{Use dmy dates|date=January 2019}}
{{Infobox river
| name = Teesta River
| name_etymology =

| image = River Teesta, Siliguri, West Bengal, India 09032019.jpg
| image_size =
| image_caption = Teesta in [[Siliguri]], West Bengal
| map = Teesta.png
| map_size =
| map_caption = Path of the Teesta
| pushpin_map = India Sikkim#India
| pushpin_map_size =
| pushpin_map_caption=Source of Teesta river in Sikkim

| subdivision_type1 = Country
| subdivision_name1 = *[[India]]
*[[Bangladesh]]
| subdivision_type2 = States
| subdivision_name2 = *[[Sikkim|Sikkim, India]]
*[[West Bengal|West Bengal, India]]
*[[Rangpur Division|Rangpur, Bangladesh]]
| subdivision_type3 = Important Bridges
| subdivision_name3 = *Chungthang Teesta Bridge
*Sirwani Teesta Bridge
*Indreni Bridge
*Rangpo Teesta Bridge
*Melli Teesta Bridge
*Tista Bazaar Bridge
*[[Coronation Bridge]]
*[[Sevoke Railway Bridge]]
*[[Joyee Setu]]
*Jalpaiguri Teesta Bridge

| subdivision_type4 = District's
| subdivision_name4 = *[[North Sikkim|Mangan District]]
*[[East Sikkim district|Gangtok District]]
*[[Pakyong District]]
*[[Kalimpong district]]
*[[Darjeeling district]]
*[[Cooch Behar district]]
*[[Jalpaiguri district]]
*[[Rangpur District]]
*[[Kurigram District]]
*[[Nilphamari District]]
*[[Gaibandha District]]
*[[Lalmonirhat District]]
| subdivision_type5 = Towns & Cities
| subdivision_name5 =
*[[Chungthang]]
*[[Mangan, India|Mangan]]
*[[Dikchu]]
*[[Singtam]]
*[[Rangpo]]
*[[Kalimpong]]
*[[Jalpaiguri]]
*[[Mekhliganj]]
*[[Haldibari, India|Haldibari]]
*[[Rangpur, Bangladesh|Rangpur]]
*[[Lalmonirhat]]

| length = {{cvt|414|km|mi}}<ref name=Mullick_al2011/>
| width_min =
| width_avg =
| width_max =
| depth_min =
| depth_avg =
| depth_max =
| discharge1 location=
| discharge1_min =
| discharge1_avg =
| discharge1_max =

| source1 = [[Pauhunri]], [[Zemu Glacier]], [[Gurudongmar Lake]], [[Tso Lhamo Lake]]
| source1_location = [[Sikkim]], [[India]]
| source1_coordinates=
| source1_elevation = {{cvt|7128|m}}<ref name=Mullick_al2011/>
| mouth = [[Brahmaputra river]]
| mouth_location = [[Phulchhari Upazila]], [[Gaibandha]], Bangladesh
| mouth_coordinates =
| mouth_elevation =
| progression =
| river_system =
| basin_size = {{cvt|12540|km2}}<ref name=Rahaman_WP2020/>
| tributaries_left = *[[Rangpo River]]
*[[Lachung River]]
*[[Ranikhola]]
*[[Relli River]]
*[[Talung River]]
*Dik Chhu
*Lang Lang Chu
| tributaries_right = *[[Rangeet|Rangeet River]]
*Kanaka River
*Ringyong Chhu
*Ranghap Chhu
| custom_label =
| custom_data =
}}

'''Teesta River''' is a {{cvt|414|km}} long river that rises in the [[Pauhunri|Pauhunri Mountain]] of eastern [[Himalayas]], flows through the [[Indian states]] of [[Sikkim]] and [[West Bengal]] and subsequently enters [[Bangladesh]] through [[Rangpur Division|Rangpur]] division. In Bangladesh, it falls into [[Brahmaputra River]] which after meeting some other major rivers of [[Bengal delta]] finally falls into the [[Bay of Bengal]].<ref name=Mullick_al2011>{{cite journal |last1=Mullick |first1=M. R. A. |last2=Babel |first2=M. S. |last3=Perret |first3=S. R. |name-list-style=amp |year=2011 |title=Discharge‐based economic valuation of irrigation water: Evidence from the Teesta River, Bangladesh |pages=481−492 |journal=Irrigation and Drainage |volume=60 |issue=4 |doi=10.1002/ird.597}}</ref> It drains an area of {{cvt|12540|km2}}.<ref name=Rahaman_WP2020>{{cite journal |last1=Rahaman |first1=M. M. |last2=Mamun |first2=A. A. |name-list-style=amp |year=2020 |title=Hydropower development along Teesta river basin: opportunities for cooperation |pages=641–657 |journal=Water Policy |volume=22 |issue=4 |doi=10.2166/wp.2020.136 |doi-access=free}}</ref> In [[India]], it flows through [[North Sikkim district|Mangan District]], [[East Sikkim district|Gangtok District]], [[Pakyong District]], [[Kalimpong district]], [[Darjeeling District]], [[Jalpaiguri District]], [[Cooch Behar district]]s and the cities of [[Rangpo]], [[Jalpaiguri]] and [[Mekhliganj]]. In Bangladesh, it flows through [[Lalmonirhat District]], [[Rangpur District]], [[Kurigram District]] and [[Gaibandha District]]. It joins the Brahmaputra River at [[Phulchhari Upazila]] in Bangladesh. {{cvt|305|km}} of the river lies in India and {{cvt|109|km}} in Bangladesh. Teesta is the largest river of Sikkim and second largest river of West Bengal after the [[Ganges]].

== Course ==
[[File:Teesta river near Gangtok.jpg|thumb|alt=Teesta river near Gangtok|Teesta river near [[Gangtok]]]]

[[File:Teestavalley.jpg|thumb|[[National Highway 10 (India)|National Highway 10]] winds along the banks of the Teesta River near [[Kalimpong]].]]
The Teesta River originates from [[Teesta Khangtse Glacier]], west of [[Pauhunri|Pahunri]] (or Teesta Kangse) glacier above {{Cvt|5400|m}}, and flows southward through gorges and rapids in the [[Sikkim]] Himalaya.<ref name=Meetei2007>{{cite journal |last1=Meetei |first1=L. I. |last2=Pattanayak |first2=S. K. |last3=Bhaskar |first3=A. |last4=Pandit |first4=M. K. |last5=Tandon |first5=S. K. |year=2007 |title=Climatic imprints in Quaternary valley fill deposits of the middle Teesta valley, Sikkim Himalaya |journal=Quaternary International |volume=159 |issue=1 |pages=32–46 |doi=10.1016/j.quaint.2006.08.018 |bibcode=2007QuInt.159...32M}}</ref>

It is fed by streams from [[Tso Lhamo Lake]], [[Gurudongmar Lake]] and [[rivulet]]s arising in the [[Thangu Valley]], [[Yumthang Valley of Flowers]], [[Dikchu]] and Donkha mountain ranges. The river then flows past the towns of [[Chungthang]], [[Singhik]], [[Mangan, India|Mangan]], [[Dikchu]], [[Makha, Sikkim|Makha]] where some major tributaries like Kanaka river joins and reaches [[Singtam]], where it is spanned by scenic Indreni Bridge. Also in Singtam, a large tributary of Teesta called [[Ranikhola]] joins and then descends towards Bardang, [[Majitar]], Mining where ot is spanned by Rangpo - Mining Teesta Bridge and reaches the city of [[Rangpo]] where [[Rangpo River]], the second largest tributary of Teesta joins. From here river Teesta forms the border between Sikkim and [[West Bengal]] up to [[Teesta Bazaar]] via [[Melli]]. Just before the Teesta Bridge, where the roads from [[Kalimpong]] and [[Darjeeling]] join, the river is met by its largest [[tributary]], the [[Rangeet River]].<ref name=Chaudhuri2015>{{cite book |last1=Chaudhuri |first1=Samita |last2=Chaudhuri |first2=Utpal |year=2015 |title=And the Teesta Flows... |page=188 |publisher=Niyogi Books |isbn=978-93-83098-70-5}}</ref>

After this point, Teesta river changes its course southwards flowing into West Bengal and some more tributaries like [[Relli River]], Riyang river, Geil Khola etc joins. Than the river hits the plains at [[Sevoke]], {{cvt|22|km}} northeast of [[Siliguri]], where it is spanned by the [[Coronation Bridge]] and [[Sevoke Railway Bridge]] linking the northeast states to the rest of [[India]]. After crossing Sevoke, the river is fed by some small tributaries like Chel Khola, Neora Khola, Leesh Khola etc, and than reaches [[Gajoldoba]] where there is Teesta Barrage. The river then flows through [[Jalpaiguri]], where there is Jalpaiguri Teesta Bridge which links Northeastern States. The river flows further down through [[Mekhliganj]] and [[Haldibari, India|Haldibari]] in [[Cooch Behar district]], where it is spanned by [[Joyee Setu]], the longest roadway bridge of West Bengal with length 3.8 kilometres.

Here the river completes its journey in India and enters [[Bangladesh]] in [[Dahagram]], [[Rangpur Division]]. The river descends towards Barakhata, where there is Teesta Barrage of Bangladesh. Further it reaches [[Rangpur District|Rangpur]] and [[Lalmonirhat]] town in [[Lalmonirhat District]] and [[Nilphamari District]]. After crossing Tepamadhupur Bazaar, Nagrakura Bazaar, Sundarganj and Bozra Bazaar, river Teesta joins [[Brahmaputra]] River at Haripur Port near [[Gaibandha]], [[Phulchhari Upazila]] in [[Kurigram District]] of Bangladesh.<ref name="Joshi2004">{{cite book |last=Joshi |first=H. G. |year=2004 |title=Sikkim: Past and Present |page=1 |publisher=Mittal Publications |isbn=978-81-7099-932-4 |url=https://books.google.com/books?id=L7gIVNzkN2YC&pg=PA1 |access-date=2009-09-08}}</ref>
[[File:Gajoldoba Barrage on Teesta river in Gajoldoba 13.jpg|thumb|Gajoldoba Barrage on Teesta river]]

== Geography ==
{{More citations needed section|date=November 2022}}
Through its course, the Teesta river has carved out [[ravine]]s and [[gorge]]s in Sikkim meandering through the hills with the [[hill station]] of Kalimpong lying just off the river and the city of Siliguri at the foothills of Himalaya. Variegated vegetation can be seen along this route. At lower elevations, [[tropical]] [[deciduous]] trees and shrubs cover the surrounding hills; [[alpine climate|alpine vegetation]] is seen at the upper altitudes. The river is flanked by white sand which is used by the construction industry in the region. Large boulders in and around the waters make it ideal for [[rafting]].

Between [[Rangpo]] town and the railway bridge (popularly called Lohapul or iron bridge) on it as it enters the plains at [[Sevoke]], the Teesta flows with a very strong current, ideal for white river rafting. Towns like [[Teesta Bazaar]] and [[Melli]] have facilities for group rafting. Though the river looks innocuous, the underlying current is very strong. In 1915, G.P. Robertson, the then Municipal Engineer of Darjeeling, drowned after losing control of the boat in the turbulence while surveying the river. The boat struck a partially hidden boulder and was sucked in by a whirlpool, leaving no trace of the occupants.

During the [[monsoon]], Teesta river distends its banks; both in size and turbulence. [[Landslide]]s in this region often dam up parts of the river in this season. It has also caused severe flooding, multiple times during monsoon in Bangladesh.<ref>{{Cite news |author1=Hossain, E. |author2=Manik, R. K. |date=2021 |title=Fresh flood feared in Bangladesh as India opens Gajoldoba again |url=https://www.newagebd.net/article/148582/fresh-flood-feared-in-bangladesh-as-india-opens-gajoldoba-again |access-date=2021-11-02 |work=New Age |publication-place=Lalmonirhat}}</ref><ref>{{Cite news |author=Badal, L. A. |date=2021 |title=Nearly 2,000 families stranded as flood hits 15 Rangpur villages |url=https://www.dhakatribune.com/bangladesh/nation/2021/08/28/nearly-2-000-families-stranded-as-flood-hits-15-rangpur-villages |access-date=2021-11-02 |work=Dhaka Tribune}}</ref>

== Changes in course of rivers ==
[[File:1776 Rennell - Dury Wall Map of Bihar and Bengal, India - Geographicus - BaharBengal-dury-1776.jpg|thumb|James Rennell's 1776 map shows an earlier flow of the Teesta meeting the [[Ganges]] in three channels before a devastating flood in 1787 changed its course]]
In the past, the Teesta flowed south from Jalpaiguri in three channels: the [[Punarbhaba River|Punarbhaba]], [[Atrai River|Atrai]] and [[Karatoya River]]s. The Teesta changed course as a result of the flooding of 1787, turning southeast to become part of the [[Brahmaputra River|Brahmaputra]].<ref name="Majumdar1971">{{cite book |last=Majumdar |first=R. C. |author-link=R. C. Majumdar |year=1971 |title=History of Ancient Bengal |location=Calcutta |publisher=G. Bhardwaj & Co. |pages=4–5 |oclc=961157849}}</ref>

== Hydroelectric projects and barrages ==
{{Multiple image |perrow=1 |image1=Hydel project on Dikchu, a tributary of Teesta AJTJ DSCN7049.jpg |caption1=Hydel project on the Dikchu, a tributary of Teesta |image2=Tista Barrage Bangladesh (2).jpg |caption2=The Teesta Barrage is a major irrigation project in Bangladesh, in [[Lalmonirhat District]]. Construction started 1979 and was completed in 1997–98.<ref name="Banglapedia">{{cite web |author=Bari, M F. |year=2012 |title=Barrage |url=http://en.banglapedia.org/index.php?title=Barrage |website=Banglapedia: National Encyclopedia of Bangladesh |publisher=[[Asiatic Society of Bangladesh]]}}</ref>}}
India has an estimated total hydroelectric power potential of 84 GW at 60% load factor. Of this, Sikkim's potential share is 2.9%, or about 4.29 GW.<ref name="moef.gov.in">{{cite web |url=http://www.moef.gov.in/sites/default/files/EIA%20Ting%20Ting.pdf |title=Environmental Impact Assessment of Ting Ting H.E. Project, Sikkim |website=Ministry of Environment, Forest, and Climate Change |archive-url=https://web.archive.org/web/20141020035343/http://www.moef.gov.in/sites/default/files/EIA%20Ting%20Ting.pdf |archive-date=2014-10-20}}</ref>

The successfully completed major projects and dams of Teesta River System are as follows:
*'''Teesta -V Dam''' : Output - 510MW, Dam Location - [[Dikchu]], [[Gangtok district]], [[Sikkim]]. Powerhouse Location - Balutar, [[Singtam]], [[Gangtok district]], [[Sikkim]]. Constructed by - [[NHPC Limited]]<ref>{{cite web |title=Teesta-V D01535 |url=http://india-wris.nrsc.gov.in/wrpinfo/index.php?title=Teesta-V_D01535 |url-status=dead |archive-url=https://web.archive.org/web/20141018132621/http://india-wris.nrsc.gov.in/wrpinfo/index.php?title=Teesta-V_D01535 |archive-date=2014-10-18 |access-date=2014-06-15 |website=India Water Resources Information System. National Remote Sensing Centre. Government of India}}</ref>
*'''Teesta III Dam''' : Output - 1200 MW Dam Location - [[Chungthang]], [[Mangan district]], [[Sikkim]]. Powerhouse Location - [[Singhik]], [[Mangan district]], [[Sikkim]]. Constructed by - Teesta Urja Limited. .<ref>{{Cite web|title=Teesta Dam Chungthang Mangan district Sikkim. Constructed by - Teesta Urja Limited. |url=http://teestaurja.com/about-project/|website=teestaurja.com}}</ref>
*'''[[Teesta Low Dam - III Hydropower Plant|Teesta Low Dam III]]''' : Output - 132MW , Dam & Powerhouse location - [[Rambi Bazar]], [[Kalimpong district]], [[West Bengal]] Constructed by - [[NHPC Limited]].<ref>{{Cite web|title=Teesta Low Dam III|url=http://nhpc.co.in/Default.aspx?id=186&lg=eng&CatId=1&ProjectId=31#:~:text=Teesta%20Low%20Dam%20III%20Power,Layout%20Plan|website=nhpc.co.in}}</ref>
*'''[[Teesta Low Dam - IV Hydropower Plant|Teesta Low Dam IV]]''': Output- 160MW, Dam & Powerhouse Location - [[Kalijhora]], [[Kalimpong district]], [[West Bengal]] Constructed by - [[NHPC Limited]].<ref>{{Cite web|title=Teesta Low Dam IV|url=http://www.nhpcindia.com/projectdetail.htm?CatId=1&ProjectId=33|website=nhpcindia.com}}</ref>
*'''Teesta Barrage''' - Location - [[Gajoldoba]], [[Jalpaiguri district]], [[West Bengal]]<ref>{{Cite web|title=Gajoldoba Teesta Barrage a bird watching destination|url=https://northbengaltourism.com/gajoldoba/|website=northbengaltourism.com}}</ref>
*'''Barakhata Teesta Barrage'''- Location: Goddimari, Barakhata, [[Nilphamari District]], [[Bangladesh]].<ref>{{Cite web|title=Teesta Barrage|url=https://en.banglapedia.org/index.php/Barrage|website=en.banglapedia.org}}</ref>
*'''Teesta VI Dam''': Output: 500MW, Dam Location: Sirwani, [[Singtam]], [[Gangtok district]], [[Sikkim]]. Powerhouse Location: Pamphok, [[Namchi district]], [[Sikkim]]. Constructed by - [[NHPC Limited]]& Lanco Infratech Limited.<ref>{{Cite web|title=Teesta VI Dam Singtam Sirwani|url=http://www.nhpcindia.com/Default.aspx?id=186&lg=eng&CatId=2&ProjectId=70|website=www nhpcindia.com}}</ref>
*'''Rangit III Dam''': On Greater [[Rangeet River]] which is a tributary of Teesta River. Output:60MW, Location:[[Legship]], [[Gyalshing district]], [[Sikkim]].Constructed by - [[NHPC Limited]] <ref>{{cite web |title=RANGIT-III HE PROJECT - NHPC(SIKKIM) - |url=http://india-wris.nrsc.gov.in/wrpinfo/index.php?title=RANGIT-III_HE_PROJECT_-_NHPC(SIKKIM) |access-date=22 March 2018 |website=India Water Resources Information System |publisher=National Remote Sensing Centre. Government of India}}</ref>
*'''Gati Hydropower Project''': A 110 MW Gati Hydropower Project lies on [[Rangpo River|River Rangpo]], a tributary of River Teesta. Location - Between the town of [[Rorathang]] and [[Rongli]] of [[Pakyong District]] in [[Sikkim]] Constructed by - Gati Hydropower Limited.<ref>{{Cite web|url=http://www.gatiinfra.com/hydroelectric.html|title = Gati Infra | Chuzachen Hydro Electric Power Project}}</ref><ref name="indiatimes">{{cite news |title=Gati Infra builds 110 MW hydro power project in Sikkim |url=http://articles.economictimes.indiatimes.com/2013-07-30/news/40895552_1_hydro-electric-power-alstom-india-hydro-power-project |publisher=Economic Times |accessdate=2014-04-21}}</ref>
*'''Dikchu River Hydroelectric Power Project''': Output: 96 MW on Dikchu River, tributary of River Teesta, Location - [[Dikchu]], [[Gangtok district]], [[Sikkim]]. Constructed by- Sneha Kinetic Power Projects Pvt. Ltd.<ref>{{Cite web|title= 96 MW Dikchu River Hydroelectric Power Project|url=http://environmentclearance.nic.in/Auth/openletter.aspx?EC=5766|website=environment clearance.nic.in}}</ref><ref>{{Cite web|title=Sneha Kinetic Power Project on Dikchu River |url=http://www.sserc.in/power-generators/sneha-kinetic-power-projects-private-limited-dikchu-hydropower-project |website=www.sserc.in}}</ref>
* '''Madhya Bharat Power Corporation Limited ''': on [[Ranikhola]], a tributary of Teesta, Output: 96MW Dam location- [[Ranipool]], [[Gangtok district]], [[Sikkim]]. Powerhouse Location- [[Kumrek]], [[Pakyong district]], [[Sikkim]].<ref>{{Cite web|title=Madhya Bharat Power Corporation Limited|url=http://www.sserc.in/power-generators/madhya-bharat-power-corporation-limited|website=www.sserc.in}}</ref>

The other three completed projects are significantly smaller and minor—Lower Lagyap, Upper Rongni Chhu and Mayang Chhu projects.<ref name="moef.gov.in"/>

==Water sharing challenge==
Disputes over the appropriate allocation and development of the water resources of the river have remained a subject of conflict between India and Bangladesh for almost 35 years, with several bilateral agreements and rounds of talks failing to produce results.<ref>{{cite news |last=Sarkar |first=SK |date=3 April 2017 |title=Sharing the Teesta |url=http://www.thestatesman.com/opinion/sharing-the-teesta-1491249152.html |access-date=7 April 2017 |work=The Statesman |type=Opinion}}</ref><ref>{{cite web |last=Ray |first=Aparna |date=8 June 2012 |title=India, Bangladesh: Water Disputes and Teesta River Diplomacy |url=https://globalvoices.org/2012/06/08/india-bangladesh-water-disputes-and-teesta-river-diplomacy/ |access-date=7 April 2017 |website=Global Voices}}</ref><ref>{{cite news |last=Bhattacharjee |first=Joyeeta |date=10 December 2016 |title=India and Bangladesh need to bring the Teesta out of muddled waters |url=http://www.hindustantimes.com/analysis/india-and-bangladesh-need-to-bring-the-teesta-out-of-muddled-waters/story-dVe7qCfsHlKervIjqKIRVK.html |access-date=7 April 2017 |work=Hindustan Times}}</ref>

Negotiations have been going on since 1983.<ref>{{Cite news |date=9 April 2017 |title=The Teesta river dispute explained in 10 points |url=https://timesofindia.indiatimes.com/india/the-teesta-river-dispute-explained-in-10-points/articleshow/58091320.cms |access-date=2021-11-02 |work=The Times of India}}</ref><ref name=":0">{{Cite book |last=Ranjan |first=Amit |url=https://books.google.com/books?id=EsHyDwAAQBAJ |title=Contested Waters: India's Transboundary River Water Disputes in South Asia |year=2020 |publisher=Taylor & Francis |isbn=978-1-000-17390-1 |at= |chapter=3: River water disputes between India and Bangladesh. The Teesta Rivers waters dispute.}}</ref><ref>{{Cite web |last=Gambhir |first=Mohak |date=31 May 2021 |title=Teesta Dispute and India-Bangladesh Relations |url=https://www.claws.in/teesta-dispute-and-india-bangladesh-relations/ |access-date=2021-11-02 |website=Center For Land Warfare Studies (CLAWS)}}</ref> In 1983, a temporary solution had been worked out— Bangladesh would get 36%, India would get 39% while the rest of the water remained unallocated.<ref name=":0" /> Both countries signed a water sharing treaty in 1996 which would look into water sharing between the two countries in general following the [[Ganges water dispute]].<ref name=":0" /> The water sharing remains a challenge.<ref name=":0" />

==Seismic concerns==
Teesta river area is in the seismically active Zone-V and has experienced micro-seismic activity. According to India's Ministry of Environment & Forests, the Teesta river dam projects have been approved with the requirement that they adopt suitable seismic coefficient in the design for the dam, tunnel, surge shaft and power house. The projects are cascaded over the length of the river, do not store large amounts water, have small reservoirs, and therefore the projects are expected to have very low risk from the reservoir induced seismicity in the area.<ref name="moef.gov.in"/>

== Climate and tectonics ==
The Teesta river has preserved good imprints of climatic and tectonics along its valleys and catchments. The interrelationship between climate, erosion, deposition and tectonic activities is not properly understood to date. These are being studied.<ref name=Meetei2007 /><ref name="Mukul2000">{{cite journal |last1=Mukul |first1=Malay |date=2000 |title=The geometry and kinematics of the Main Boundary Thrust and related neotectonics in the Darjiling Himalayan fold-and-thrust belt, West Bengal, India |journal=Journal of Structural Geology |volume=22 |issue=9 |pages=1261–1283 |doi=10.1016/S0191-8141(00)00032-8 |bibcode=2000JSG....22.1261M}}</ref><ref>{{cite journal |last1=Mukul |first1=Malay |last2=Jaiswal |first2=M. |last3=Singhvi |first3=A. K. |date=November 2007 |title=Timing of recent out-of-sequence active deformation in the frontal Himalayan wedge: Insights from the Darjiling sub-Himalaya, India |journal=Geology |publisher=The Geological Society of America |volume=35 |issue=11 |pages=999–1002 |doi=10.1130/G23869A.1 |bibcode=2007Geo....35..999M}}</ref>

== See also ==
*[[Jaldhaka River]]

== References ==
{{Reflist}}

== External links ==
{{commons category|Teesta River}}
* {{GEOnet2|75FEBC462E4ECF01E040D6A411F71D20|Tista River}}
* {{citation |author=Mesbah-us-Saleheen |chapter=Tista River |chapter-url=http://en.banglapedia.org/index.php?title=Tista_River |title=Banglapedia: National Encyclopedia of Bangladesh |editor=Sirajul Islam and Ahmed A. Jamal |publisher=[[Asiatic Society of Bangladesh]] |year=2012 |edition=Second}}

{{Hydrography of Sikkim}}
{{Rivers in and around Bengal}}

{{coord|25|30|50|N|89|39|56|E|type:waterbody_region:BD_dim:100km|display=title}}

[[Category:International rivers of Asia]]
[[Category:Rivers of Bangladesh]]
[[Category:Tributaries of the Brahmaputra River]]
[[Category:Bay of Bengal]]
[[Category:Rivers of Sikkim]]
[[Category:Rivers of West Bengal]]
[[Category:Rivers of Rangpur Division]]

Teesta River - Revision history

82.132.226.146 at 16:23, 28 April 2026

MyIPL: refined lead after review for accuracy

Ajay Kumar: Created a new article