High Quality Content by WIKIPEDIA articles! Najafgarh drain bird sanctuary (proposed) and wetland ecosystem is composed of the wetland ecosystem and wildlife habitat existing on several kilometers of the Najafgarh drain or nallah which passes through rural southwest Delhi in India's capital territory including the portion draining the depression or basin area that formed the once famous but now completely drained and disappeared Najafgarh lake or Najafgarh jheel. Within National Capital Territory of Delhi (NCT) this channelized water-way misclassified, misnamed as a mere drain (Najafgarh drain or nallah) is, in fact, the continuation of Sahibi River and an elongation of the Najafgarh jheel Lake, it is a tributary to River Yamuna in which it outfalls here. It becomes a refuge to thousands of migratory waterbirds every winter and winter months are the best time to visit it to see many flocks of wintering waterbirds along its length and breadth. It is currently classified as and features...