The topography of the zone K-1 has gentle slope towards the Najafgarh Drain, thereby causing the flow of all the natural storm drain from the area around Rohtak Railway Line, Mundka, Ranhola (Safipur), Bakkarwala, Nilothi and other villages built up area of unauthorized colonies towards the Najafgarh Drain. Total Area of Zone is 6515 Ha. About 2883 ha of area of zone K-1 is in the form of built-up area/unauthorized colonies (Residential, Commercial & Industrial). The existing population of the zone K-1 as per 2001 census is about 5.0 lac. This population of zone K-1 is inhabitated in 180 unauthorized colonies and 26 villages. It is difficult to estimate exact figures as there is difference in physical/revenue village boundary and the census charges of the area.
Approximately length of Najafgarh drain in this sub zone is about 21.2 km which carries storm water drainage of built-up area of the zone.
In K1 Zone, there is only one planned residential scheme known as Lok Nayak Puram which was developed by the DDA with an area of about 80 ha. The road of 100 m R/W is also proposed through this zone which will act as major transport corridor linking zone K-1 and K-2 with NH-8 and NH-10. Religious and Privately owned Educational Institutions: In this Zone there are few large religious, spiritual & meditation centre on privately owned land besides educational institutions / school.
At present availability of portable safe drinking water in this area is inadequate. Most of water requirement is met out by tube-well. However, the output performance of tube-wells has shown a declining trend.