Najafgarh Lake, Najafgarh Marsh or Najafgarh Jheel (Jheel in Hindi means a lake), fed by Sahibi River, used to be a vast lake in the south west of Delhi, near the town of Najafgarh, from which it takes its name. It was connected to the river Yamuna by a natural shallow nullah or drain called the Najafgarh nullah. However, after the 1960s the Flood Control Department of Delhi kept widening the Najafgarh drain. The reason provided by the department was saving Delhi from floods. This widening led to the eventually drainage of, the once huge and ecologically rich, Najafgarh lake. Rainwater accumulating in the Najafgarh lake or jheel basin had been recorded to have occupied more than 300 square kilometres (120 sq mi) in many years before its draining.
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Need for recreation of the drained lake
With recent advances in ecological understanding it has become clear that draining of this vast lake affected the entire climate of this important region that is India's capital territory of Delhi and its neighborhood, it also led to the underground water table going down leading to water scarcity for this densely populated region. However, at the time of the draining of the lake in the 1960s or in the decades that followed the issue of destroying the rich wetland ecosystem and wildlife habitat of the lake, its ecological value and its value as a water reservoir recharging the local water table in the dry months and the effect of draining this vast lake on local climate largely went unnoticed and undiscussed as the general public, the media and news agencies or the related environment departments were largely unaware and oblivious of what was happening and its long-term effects. Even now the fact that a vast lake ever existed here in the region and the current need for resurrecting it remains largely an unknown little discussed issue. The complete draining of the lake caused the great loss of a rich wetland ecosystem and wildlife habitat and led to the water table in the entire region to going down which has in turn led to the area becoming more and more arid. There have been some plans since to at least resurrect a much smaller lake in the area. Most of the Najafgarh jheel basin lands have increased many folds in their value owing to them coming within Delhi, India's capital territory and are under ownership of farmers who may want to make a fast buck selling them to developers who want to convert the former lake basin into housing complexes as has already been happening with major housing colonies coming up in the region. If Najafgarh drain, which was built to drain the original Najafgarh lake or jheel, ever breaches its wide embankments it will flood these developed lands and housing colonies owing to them spread all over the former low lying jheel or lake basin.
Pre-draining history: A vast lake
Before the unfortunate complete draining of this lake in the 1960s by widening of the Najafgarh Drain by the flood control and irrigation department of Delhi the lake in many years filled up a depression more than 300 square kilometres (120 sq mi) in rural Delhi. It had an extremely rich wetland ecosystem forming a refuge for vast quantities of waterbirds and local wildlife. The lake was one of the last habitats of the famed and endangered Siberian crane which has all but vanished from the Indian subcontinent now. Till before independence many British colonial officers and dignitaries came in large parties for waterfowl hunting every season.[1][2][3]
Najafgarh drain or nullah
The Najafgarh drain or Najafgarh nullah (nullah in Hindi means drain) is just another name for the River Sahibi which continues its flow through Delhi where it is channelized due to flood control purposes, it is a tributary to River Yamuna in which it outfalls here. Within Delhi it is erroneously called "Najafgarh drain" or "Najafgarh nullah"', it gets this name from the once famous and huge Najafgarh Jheel (lake) near the town of Najafgarh in southwest Delhi and within urbanized Delhi it is the Indian Capital's most polluted water body due to direct inflow of untreated sewage from surrounding populated areas. A January 2005 report by the Central Pollution Control Board clubs this drain with 13 other highly polluted wetlands under category D for assessing the water quality of wetlands in wildlife habitats.[4][5][6][7][8]
Bird Sanctuary and wetland ecosystem
The drain has been much widened over the years to drain all the water which in earlier decades used to collect in the Nagafgarh Jheel basin this was supposedly done to remove the threat of flooding in Delhi[9][10] and now the drain itself acts as an elongated water body or lake with trees planted on both its embankments with an inspection road running on one embankment. During the winter months it attracts vast quantities of migratory birds and also supports local wildlife yearlong. Due to the rich wildlife observed in and around the less polluted stretch of the drain outside of congested populated areas it has been proposed as a Bird Sanctuary for Delhi.[11][12][13]
The wetland ecosystem and wildlife habitat on several kilometers of less polluted Najafgarh drain in rural Delhi before entering the main city including the former Najafgarh lake or Najafgarh jheel area is very important habitat to migratory waterbirds as well as local wildlife and has been earmarked to be declared a bird sanctuary for Delhi. The area came to be recognized as an important wildlife habitat after a local naturalist studying the area during 1986-88 called attention to it recommending it to be conserved as a bird sanctuary after which the Delhi wildlife department posted 16 guards in the area to control illegal bird hunters including diplomats from various international embassies located in Delhi, India's capital. Delhi Administration officials were tasked with declaring about 25km stretch of the drain in rural delhi, including where is passes through the core area of the now drained Najafgarh Lake, "protected" under the "Wildlife Act" after Lt.-Governor of Delhi Mr. H.L. Kapur was invited to the area for touring the site where he also heard accounts of local villagers about the rampant illegal hunting of waterbirds that went on here every year. The existing staff of the Flood Control and Irrigation Department numbering about 40 were also given the additional responsibility of protecting the wildlife on and around the drain.[14][15][16]
In the huge Najafgarh jheel that existed here, a very rich wetland ecosystem flourished with rich local and migratory bird life; and in the surrounding lands there was plenty of local wildlife. Large hunting parties of local and British colonial elites[17] descended on the lake yearly, many local villagers were employed as guides and assisted with the camping duties in the hunting camps. Local villagers still alive till the end of last century remembered many cars of British colonial officers congregating at the edge of the lake for duck shoots. In those decades bygone, along with the rich wildlife inhabiting the region here also lived the now presumably extinct famous pink-headed ducks of which records exist of having been shot here by the hunters and bird-watchers recorded the presence of rare Siberian cranes that no more visit India.[18][19]
Farmlands in the Najafgarh lake basin area an important habitat
Farmland with very little disturbance acts as an important bird habitat in the Najafgarh lake basin, even fields lying fallow are used by hundreds of congregating demoiselle cranes and common cranes, pairs of sarus cranes can be seen in the adjoining farmland along the Najafgarh drain. Other resident wild bird and animals also inhabit these farmlands including hares, nilgai, wildcat, common fox, jackal, monitor lizards, various varieties of snakes etc. which also come for shelter into the forested embankments of the drain and disperse into the neighbouring farmland for foraging.
Development of major housing colonies in the former Najafgarh lake basin
After the complete draining of the lake in the 1960s the former lake basin was converted into farmland first and by now various large scale housing projects occupy the former lake basin including vikaspuri, Uttam Nagar, pappankalan, dwarka etc., the Delhi airport also borders the former lake basin.
Land costs have skyrocketed and builders and developers have converged on this area which falls within Delhi, land use is changing from farming to housing colony urban development. However, in case if the Najafgarh Drain ever breaches its man-made and fortified embankments during the monsoon season, large swaths of these housing colonies could be flooded, causing a major disaster.
See also
- Bhalswa horseshoe lake
- Najafgarh town, Delhi
- Najafgarh drain, Delhi
- Najafgarh drain bird sanctuary, Delhi
- National Zoological Park Delhi
- Okhla Sanctuary, bordering Delhi in adjoining Uttar Pradesh
- Sultanpur National Park, bordering Delhi in adjoining Gurgaon District, Haryana
References
Further reading
External links
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