The Yamuna (Hindustani: pronounced [jəmunaː]) is the second-largest tributary river of the Ganga and the longest tributary in India. Originating from the Yamunotri Glacier at a height of 6,387 metres (20,955 ft) on the southwestern slopes of Banderpooch peaks of the Lower Himalaya in Uttarakhand, it travels a total length of 1,376 kilometres (855 mi) and has a drainage system of 366,223 square kilometres (141,399 sq mi), 40.2% of the entire Ganga Basin. It merges with the Ganga at Triveni Sangam, Allahabad, which is a site of the Kumbh Mela, a Hindu festival held every 12 years.
|State||Uttarakhand, Himachal Pradesh, Uttar Pradesh, Haryana, Delhi|
|Cities||Haryana: Yamuna Nagar |
Uttar Pradesh: Noida, Mathura, Agra, Firozabad, Etawah, Auraiya and Allahabad
|• location||Banderpooch peaks, Uttarkashi district, Uttarakhand, India|
|• elevation||3,293 m (10,804 ft)|
|Triveni Sangam, Allahabad, India|
|74 m (243 ft)|
|Length||1,376 km (855 mi)|
|Basin size||366,223 km2 (141,399 sq mi)|
|• average||2,950 m3/s (104,000 cu ft/s)|
|• left||Tons, Hindon, Hanuman Ganga, Sasur Khaderi|
|• right||Giri, Baghain, Chambal, Betwa, Sindh, Ken|
Like the Ganga, the Yamuna is highly venerated in Hinduism and worshipped as the goddess Yamuna. In Hinduism she is the daughter of the Sun Deva, Surya, and the sister of Yama, the Deva of Death, hence also known as Yami. According to popular legends, bathing in its sacred waters frees one from the torments of death.
It crosses several states: Haryana and Uttar Pradesh, passing by Uttarakhand and later Delhi, and meeting its tributaries on the way, including Tons, Chambal, its longest tributary which has its own large basin, followed by Sindh, the Betwa, and Ken. From Uttarakhand, the river flows into the state of Himachal Pradesh. After passing Paonta Sahib, Yamuna flows along the boundary of Haryana and Uttar Pradesh and after exiting Haryana it continues to flow till it merges with the river Ganga at Sangam or Prayag in Allahbad (Uttar Pradesh). It helps create the highly fertile alluvial Yamuna-Ganga Doab region between itself and the Ganga in the Indo-Gangetic plain.
Nearly 57 million people depend on the Yamuna's waters, and the river accounts for more than 70 percent of Delhi's water supply. It has an annual flow of 97 billion cubic metres, and nearly 4 billion cubic metres are consumed every year (of which irrigation constitutes 96%). At the Hathni Kund Barrage, its waters are diverted into two large canals: the Western Yamuna Canal flowing towards Haryana and the Eastern Yamuna Canal towards Uttar Pradesh. Beyond that point the Yamuna is joined only by the Somb, a seasonal rivulet from Haryana, and by the highly polluted Hindon River near Noida, so that it continues only as a trickling sewage-bearing drain before joining the Chambal at Pachnada in the Etawah District of Uttar Pradesh.
The water quality in "Upper Yamuna", as 375 kilometres (233 mi) long stretch of Yamuna is called from its origin at Yamunotri to Okhla barrage, is of "reasonably good quality" till Wazirabad barrage in Delhi. Below this, the discharge of wastewater in Delhi through 15 drains between Wazirabad barrage and Okhla barrage renders the river severely polluted. Wazirabad barrage to Okhla Barrage, 22 km stretch of Yamuna in Delhi, is less than 2% cent of Yamuna's total length but accounts for nearly 80% of the total pollution in the river, 22 out of 35 sewage treatment plants in Delhi do not meet the wastewater standards prescribed by the Delhi Pollution Control Committee (DPCC). There are 4 main causes of Yamuna's pollution in Delhi: poor quality of water released by the affluent treatment plants, household and municipal disposal sites, soil erosion resulting from deforestation occurring to make way for agriculture, and resulting chemical wash-off from fertilizers, herbicides, and pesticides and run-off from commercial activity and industrial sites. One official described the river as a "sewage drain" with biochemical oxygen demand (BOD) values ranging from 14 to 28 mg/l and high coliform content.
Palaeochannels: Sarasvati's tributaryEdit
The present Sarsuti river which originates in the Shivalik hills in Himachal and Haryana border and merges with Ghaggar River near Pehowa is the palaeochannel of Yamuna. Yamuna changed its course to the east due to a shift in the slope of the earth's crust caused by plate tectonics.
Sources: Banderpoonch peak and Yamunotri glacierEdit
The source of Yamuna lies in the Yamunotri Glacier at an elevation of 6,387 metres (20,955 ft), on the southwestern slopes of Banderpooch peaks, which lie in the Mussoorie range of the Lower Himalayas, north of Haridwar in Uttarkashi district, Uttarakhand. Yamunotri temple, a shrine dedicated to the goddess Yamuna, is one of the holiest shrines in Hinduism, and part of the Chota Char Dham Yatra circuit. Also standing close to the temple, on its 13-kilometre (8 mi) trek route that follows the right bank of the river, lies Markendeya Tirtha, where the sage Markandeya wrote the Markandeya Purana.
The river flows southwards for about 200 kilometres (120 mi), through the Lower Himalayas and the Shivalik Hills Range. Morainic deposits are found along the steep Upper Yamuna, highlighted with geomorphic features such as interlocking spurs, steep rock benches, gorges and stream terraces. Large terraces formed over a long period of time can be seen in the lower course of the river, such as those near Naugoan. An important part of its early catchment area, totalling 2,320 square kilometres (900 sq mi), lies in Himachal Pradesh. The Tons, Yamuna's largest tributary, drains a large portion of the upper catchment area and holds more water than the main stream. It rises from the Hari-ki-dun valley and merges after Kalsi near Dehradun. The drainage system of the river stretches between Giri-Sutlej catchment in Himachal and Yamuna-Bhilangna catchment in Garhwal, also draining the ridge of Shimla. Kalanag (6,387 metres [20,955 ft]) is the highest point of the Yamuna basin. Other tributaries in the region are the Giri, Rishi Ganga, Kunta, Hanuman Ganga and Bata, which drain the upper catchment area of the Yamuna basin.
From the upper catchment area, the river descends onto the plains of Doon Valley, at Dak Pathar near Dehradun. Flowing through the Dakpathar Barrage, the water is diverted into a canal for power generation. Further downstream, the Assan River joins the Yamuna at the Asan Barrage, which hosts a bird sanctuary. After passing the Sikh pilgrimage town of Paonta Sahib, the Yamuna reaches Tajewala in Yamuna Nagar district (named after the river) of Haryana. A dam built here in 1873 is the origin of two important canals, the Western and Eastern Yamuna Canals, which irrigate the states of Haryana and Uttar Pradesh. The Western Yamuna Canal (WYC) crosses Yamuna Nagar, Karnal, Panipat and Sonipat before reaching the Haiderpur treatment plant, which contributes to Delhi's municipal water supply. The Yamuna receives wastewater from Yamuna Nagar and Panipat cities; beyond this it is replenished by seasonal streams and groundwater accrual. During the dry season, the Yamuna remains dry in many stretches between the Tajewala dam and Delhi, where it enters near the Palla barrage after traversing 224 kilometres (139 mi).
The Yamuna defines the state borders between Himachal Pradesh and Uttarakhand, and between Haryana, Delhi and Uttar Pradesh. When the Yamuna reaches the Indo-Gangetic plain, it runs almost parallel to the Ganges, the two rivers creating the Ganges-Yamuna Doab region. Spread across 69,000 square kilometres (27,000 sq mi), one-third of the alluvial plain, the region is known for its agricultural output, particularly for the cultivation of basmati rice. The plain's agriculture supports one-third of India's population.
|State||Catchment area (km2)||% of catchment area|
|Uttar Pradesh and Uttarakhand||74,208||21.5|
Subsequently, the Yamuna flows through the states of Delhi, Haryana and Uttar Pradesh] before merging with the Ganges at a sacred spot known as Triveni Sangam in Allahabad. Pilgrims travel by boats to platforms erected in midstream to offer prayers. During the Kumbh Mela, held every 12 years, large congregations of people immerse themselves in the sacred waters of the confluence. The cities of Baghpat, Delhi, Noida, Mathura, Agra, Firozabad, Etawah, Kalpi, Hamirpur, and Prayagraj lie on its banks. At Etawah, it meets it another important tributary, Chambal, followed by a host of tributaries further down, including, Sindh, the Betwa, and Ken.
Along its 1,376-kilometre (855 mi) length, the Yamuna has many notable tributaries:
- Tons River, Yamuna's largest tributary, which rises in the 6,315-metre-high (20,719 ft) Bandarpoonch mountain, and has a large basin in Himachal Pradesh. It meets Yamuna below Kalsi near Dehradun, Uttarakhand.
- Hindon River, which originates in the Saharanpur District, from Upper Shivalik in the Lower Himalayan Range. It is entirely rainfed and has a catchment area of 7,083 square kilometres (2,735 sq mi), traverses 400 kilometres (250 mi) through Muzaffarnagar District, Meerut District, Baghpat District, Ghaziabad, Noida and Greater Noida, before joining Yamuna just outside Delhi.
- Ken River, which flows through the Bundelkhand region of Madhya Pradesh and Uttar Pradesh. It originates near Ahirgawan village in Jabalpur district and travels a distance of 427 kilometres (265 mi) before merging with the Yamuna at Chilla village, near Fatehpur in Uttar Pradesh. It has an overall drainage basin of 28,058 square kilometres (10,833 sq mi).
- Chambal River, known as Charmanvati in ancient texts, which is Yamuna's longest tributary. It flows through Rajasthan and Madhya Pradesh and traverses a total distance of 960 kilometres (600 mi) from its source in Vindhya Range, near Mhow. With a drainage basin of 143,219 square kilometres (55,297 sq mi), it supports hydro-power generation at Gandhi Sagar dam, Rana Pratap Sagar dam and Jawahar Sagar dam, before merging into the Yamuna south east of Sohan Goan, in Etawah district.
- Sindh River, which joins the Yamuna shortly after the Chambal.
Earliest mention of Yamuna is found at many places in the Rig Veda (c. 1500–1000 BCE), which was composed during the Vedic period c. 1700–1100 BCE, and also in the later Atharvaveda, and the Brahmanas including Aitareya Brahmana and Shatapatha Brahmana. In the Rigveda, the story of the Yamuna describes her "excessive love" for her twin, Yama, who in turn asks her to find a suitable match for herself, which she does in Krishna.
Yamuna is mentioned as Iomanes (Ioames) in the surveys of Seleucus I Nicator, an officer of Alexander the Great and one of the Diadochi, who visited India in 305 BCE. Greek traveller and geographer Megasthenes visited India sometime before 288 BCE (the date of Chandragupta's death) and mentioned the river in his Indica, where he described the region around it as the land of Surasena. In Mahabharata, the Pandava capital of Indraprastha was situated on the banks of Yamuna, considered to be the site of modern Delhi.
Geological evidence indicates that in the distant past the Yamuna was a tributary of the Ghaggar River (identified by some as the Vedic Sarasvati River). It later changed its course eastward, becoming a tributary of the Ganges. While some have argued that this was due to a tectonic event, and may have led to the Sarasvati River drying up, the end of many Harappan civilisation settlements, and creation of the Thar desert, recent geological research suggests that the diversion of the Yamuna to the Ganges may have occurred during the Pleistocene, and thus could not be connected to the decline of the Harappan civilisation in the region.
Most of the great empires which ruled over a majority of India were based in the highly fertile Ganges–Yamuna basin, including the Magadha (c. 600 BCE), Maurya Empire (321–185 BCE), Shunga Empire (185–73 BCE), Kushan Empire (1st–3rd centuries CE), and Gupta Empire (280–550 CE), and many had their capitals here, in cities like Pataliputra or Mathura. These rivers were revered throughout these kingdoms that flourished on their banks; since the period of Chandragupta II (r. 375–415 CE), statues both the Ganges and Yamuna became common throughout the Gupta Empire. Further to the South, images of the Ganges and Yamuna are found amidst shrines of the Chalukyas, Rashtrakutas (753–982), and on their royal seals; prior to them, the Chola Empire also added the river into their architectural motifs. The Three River Goddess shrine, next to the Kailash rock-cut Temple at Ellora, shows the Ganges flanked by the Yamuna and Saraswati.
Use of waterEdit
1994 water sharing agreementEdit
The stretch of the river from its origin at Yamunotri to Okhla barrage in Delhi is called "Upper Yamuna". A Memorandum of Understanding (MoU) was signed amongst the five basin states (Himachal Pradesh, Uttar Pradesh, Uttarakhand, Haryana, Rajasthan, and Delhi) on 12 May 1994 for sharing of its waters. This led to the formation of Upper Yamuna River Board under India's Ministry of Water Resources, whose primary functions are: regulation of the available flows amongst the beneficiary states and monitoring the return flows; monitoring conservation and upgrading the quality of surface and groundwater; maintaining hydro-meteorological data for the basin; overviewing plans for watershed management; and monitoring and reviewing the progress of all projects up to and including Okhla barrage.
Flood forecasting systems are established at Poanta Sahib, where Tons, Pawar and Giri tributaries meet. The river take 60 hours to travel from Tajewala to Delhi, thus allowing a two-day advance flood warning period. The Central Water Commission started flood-forecasting services in 1958 with its first forecasting station on Yamuna at Delhi Railway Bridge.
- Dakpathar Barrage in Uttarakhand, managed by the Uttarakhand govt.
- Hathni Kund Barrage in Haryana, 172 km (107 mi) from the source of Yamuna, built in 1999 and managed by Haryana govt.
- Wazirabad barrage in north Delhi, 244 km (152 mi) from Hathni Kund barrage, managed by the Delhi govt.
- "New Wazirabad barrage", proposed in 2013, to be built 8 km north of the Wazirabad barrage.
- Okhla barrage is 22 km from Wazirabad to south Delhi, managed by the Uttar Pradesh (UP) government.
Use of the Yamuna's waters for irrigation in the Indo-Gangetic Plains is enhanced by its many canals, some dating to the 14th century Tughlaq dynasty, which built the Nahr-i-Bahisht (Paradise) parallel to the river. The Nahr-i-Bahisht was restored and extended by the Mughals in the first half of the 17th century, by engineer Ali Mardan Khan, starting from Benawas where the river enters the plains and terminating near the Mughal capital of Shahjahanabad, the present city of Delhi.
Eastern Yamuna CanalEdit
As the Yamuna enters the Northern Plains near Dakpathar at an elevation of 790 metres (2,590 ft), the Eastern Yamuna Canal commences at the Dakpathar Barrage and pauses at the Asan and Hathnikund Barrages before continuing south.
Western Yamuna CanalEdit
The Western Yamuna Canal (WYC) was built in 1335 CE by Firuz Shah Tughlaq. Excessive silting caused it to stop flowing c. 1750, when the British Raj undertook a three-year renovation in 1817 by Bengal Engineer Group. The Tajewala Barrage dam was built in 1832–33[timeframe?] to regulate the flow of water, and was replaced by the modern Hathni Kund Barrage in 1999.
The main canal is 86 kilometres (53 mi) long. When including its branches and many major and minor irrigation channels, it has a total length of 325 km (202 mi) The WYC begins at the Hathni Kund Barrage about 38 kilometres (24 mi) from Dakpathar and south of Doon Valley. The canals irrigate vast tracts of land in the region in Ambala, Karnal, Sonepat, Rohtak, Jind, Hisar and Bhiwani districts.
The major branch canals are:
- Agra Canal, built in 1874, which starts from the Okhla barrage beyond the Nizamuddin bridge, joining the Banganga river about 32 kilometres (20 mi) below Agra. During the dry summer season, the stretch above Agra resembles a minor stream.
- Munak canal, built in 1819 and renovated in 2008, originates at Munak in Karnal district and extends 22 km to Delhi, carrying 20 m3/s (700 cu ft/s) of water.
- Sirsa Branch, the largest branch of the WYC, constructed in 1889–1895. It originates at Indri and meanders through Jind district, Fatehabad district and Sirsa district.
- Hansi Branch, built in 1825 and remodelled in 1959. It originates at Munak and meanders through Hansi tehsil of Hisar district.
Sutlej–Yamuna Link CanalEdit
A proposed heavy freight canal, the Sutlej–Yamuna Link (SYL), is being built westwards from near the Yamuna's headwaters through the Punjab region near an ancient caravan route and highlands pass to the navigable parts of the Sutlej–Indus watershed. This will connect the Ganges, which flows to the east coast of the subcontinent, with points west (via Pakistan). When completed, the SYL will allow shipping from India's east coast to the west coast and the Arabian sea, shortening important commercial links for north-central India's large population. The canal starts near Delhi, and is designed to transfer Haryana's share of 4.3 km3 (3,500,000 acre⋅ft) from the Indus Basin.
- Delhi–Faridabad (Wazirabad barrage to Palla barrage, via ITO barrage), is being developed for passenger and cargo ferry service.
Significance in Indian-origin religionsEdit
The tale is further detailed in the 16th century Sanskrit hymn, Yamunashtakam, an ode by the philosopher Vallabhacharya. Here the story of her descent to meet her beloved Krishna and to purify the world has been put into verse. The hymn also praises her for being the source of all spiritual abilities. And while the Ganges is considered an epitome of asceticism and higher knowledge and can grant Moksha or liberation, it is Yamuna, who, being a holder of infinite love and compassion, can grant freedom, even from death, the realm of her elder brother. Vallabhacharya writes that she rushes down the Kalinda Mountain, and describes her as the daughter of Kalinda, giving her the name Kalindi, the backdrop of Krishna Leela. The text also talks about her water being of the colour of Lord Krishna, which is dark (Shyam). The river is referred to as Asita in some historical texts.
The river Yamuna and its surrounding is connected to the legends of the Avatar Krishna, especially the Puranas. One such story is of Kaliya Daman, the subduing of Kaliya, a Nāga which had inhabited the river and terrorised the people of Braja. Yamuna as Kalindi is also considered as a consort of Krishna.
Shlokas on YamunaEdit
- "Simply by bathing in the Yamuna, anyone can diminish the reactions of his sinful activities." (Krishna Book, Chap 38)
- "By taking bath in the Yamuna River people are liberated and become Krishna conscious." (Chaitanya Charitamrita Antya 4.98 purport)
- "There are many devotees in Vrindavana who regularly bathe in the Yamuna, and this cleanses all the contamination of the material world." (Srimad Bhagavatam 5.8.31)
- "One should not give up the process of austerity. If possible, one should bathe in the water of the Yamuna. This is an item of austerity. Therefore, our Krishna consciousness movement has established a center in Vrindavana so that one may bathe in the Yamuna, chant the Hare Krishna mantra and then become perfect and return back to Godhead." (Srimad Bhagavatam 6.5.28 purport)
- "The Yamuna River washed Krishna's lotus feet when the Lord appeared in Vrindavana five thousand years ago. Lord Krishna sported daily with His boys and girlfriends in the Yamuna River and consequently, that river is also caranamrita." (Srimad Bhagavatam 11.6.19)
- "According to the Varaha Purana as quoted by Srila Jiva Gosvami, there is no difference between the water of the Ganges and the Yamuna, but when the water of the Ganges is sanctified one hundred times, it is called the Yamuna. Similarly, it is said in the scriptures that one thousand names of Vishnu are equal to one name of Rama and three names of Lord Rama are equal to one name of Krishna." (Srimad Bhagavatam 1.19.6 purport)
Ecological conservation zoneEdit
On 25 April 2014, the National Green Tribunal Act (NGA) recommended the government to declare a 52-kilometre (32 mi) stretch of the Yamuna in Delhi and Uttar Pradesh as a conservation zone. A report prepared by the Ministry of Environment and Forests (MoEF) panel was submitted to the NGA on the same day. Under the Yamuna Action Plan (YAP-I and YAP-II), pollution cleanup of Yamuna was conducted in line with the biological oxygen demand of Yamuna. Under these two phases, 286 schemes, including 39 sewage treatment plants, were completed in 21 towns of Delhi, Uttar Pradesh, and Haryana at a cost of ₹1,453.17 crore (14.5 billion rupees). Sewage treatment capacity of 767.25 million litres per day was created through these efforts.
The High Court in the northern Indian state of Uttarakhand ordered in March 2017 that the Ganges and its main tributary, the Yamuna, be assigned the status of legal entities, making the rivers "legal and living entities having the status of a legal person with all corresponding rights, duties and liabilities". This decision meant that polluting or damaging the rivers is equivalent to harming a person. The court cited the example of the New Zealand Whanganui River, which was also declared to possess full rights of a legal person.
This development of environmental personhood has been met with scepticism as merely announcing that the Ganges and Yamuna are living entities will not save them from significant, ongoing pollution.
Wildlife and plantsEdit
The Yamuna from the source to its culmination in Ganges is a habitat for fish for approximately 1400 km stretch and supports a rich diversity of species. Fish from the family Cyprinidae dominate the variety of fish species found in the river. This includes Indian carp and also invasive species from the family.In a study, 93 species of fish were found in the river including catfish. Species of non-native Tilapia have become established in the river.They have been implicated in the decline of the Ghariyal (Indian crocodile) population in the river Large turtles used to be a common sight on the river a few decades ago but they have mostly disappeared.
In 1909, the waters of the Yamuna were distinguishable as clear blue, when compared to the silt-laden yellow of the Ganges. However, due to high-density population growth and fast industrialisation, Yamuna has become one of the most polluted rivers in the world. The Yamuna is particularly polluted downstream of New Delhi, the capital of India, which dumps about 58% of its waste into the river. A 2016 study shows that there is 100% urban metabolism of River Yamuna as it passes through the National Capital Territory (NCT) of Delhi. The most pollution comes from Wazirabad, from where Yamuna enters Delhi
Wazirabad barrage to New Okhla Barrage, "22 km stretch of Yamuna in Delhi, is less than 2% cent of Yamuna's total length but accounts for nearly 80% of the total pollution in the river", 22 out of 35 sewage treatment plants in Delhi do not meet the wastewater standards prescribed by the Delhi Pollution Control Committee (DPCC), thus untreated wastewater and poor quality of water discharged from the wastewater treatment plants are the major reasons. As of 2019, the river receives 800 million litres of largely untreated sewage and additional 44 million litres of industrial effluents each day, of which only 35 percent of the sewage released into the river are believed to be treated. In 1994, the states of Uttarakhand, Himachal Pradesh, Uttar Pradesh, Haryana, Rajasthan and Delhi made a water sharing agreement that is due for revision in 2025. To achieve a water quality suitable for bathing (BOD<3 mg/l and DO>5 mg/l) would require a greater rate of water flow in the river. A study has recommended that 23 cubic metres (23,000 l; 5,100 imp gal) per second of water should be released from Hathni Kund Barrage during the lean season to provide a minimum environmental flow in the Yamuna.
To address river pollution, measures have been taken by the Ministry of Environment and Forests (MoEF) in 12 towns of Haryana, 8 towns of Uttar Pradesh, and Delhi, under the Yamuna Action Plan (YAP) which has been implemented since 1993 by the MoEF's National River Conservation Directorate (NRCD). The Japan Bank for International Cooperation is participating in the YAP in 15 of the towns (excluding 6 towns of Haryana included later on the direction of the Supreme Court of India) with soft loan assistance of 17.773 billion Japanese yen (equivalent to about ₹700 crore [7 billion rupees]) while the government of India is providing the funds for the remaining 6 towns. In 2007, the Indian government's plans to repair sewage lines were predicted to improve the water quality of the river 90% by the year 2010.[needs update]
Under the YAP- III scheme, a new sewage treatment plant is being built at the largest such facility in India by the Delhi Jal Board (DJB). The plant is predicted to be able to treat 124 million gallons of wastewater per day, amounting to a daily removal of 41,200 kg of organic pollutants as well as 61,600 kg of solids.
The last barrage across the Yamuna river is the Mathura barrage at Gokul for supply of drinking water to that city. Downstream of this barrage, many pumping stations are constructed to feed the river water for irrigation needs. These pumping stations are near Pateora Danda , Samgara , Ainjhi , Bilas Khadar , and Samari . Depletion of the base flows available in the river during the non-monsoon months by these pump houses is exacerbating river pollution from Mathura to Allahabad in the absence of adequate fresh water to dilute the polluted drainage from habitations and industries.
In 2009, the Union government announced to the Lok Sabha (Indian Parliament), the failure of the Ganga Action Plan and the YAP, saying that "rivers Ganga and Yamuna are no cleaner now than two decades ago" despite spending over ₹1,700 crore (17 billion rupees) to control pollution. According to a Centre for Science and Environment (CSE) official, these plans adopted the Thames model, based on a centralised sewage treatment system. This meant that a huge sum of money and a 24-hour power supply were needed to manage the treatment plants, while only an 8-hour power supply was available, contributing to the failure.
In August 2009, the Delhi Jal Board (DJB) initiated its plan for resuscitating the Yamuna's 22-kilometre (14 mi) stretch in Delhi by constructing interceptor sewers, at the cost of about ₹1,800 crore (18 billion rupees).
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