program that assisted in the construction of 93,000 houses, a basic health and family planning program, and a rural development program in the nearby villages. The OPP also helps provide education services, and as a result, the literacy rate in Orangi is higher than the rate in Karachi overall. Along with the Orangi Charitable Trust (OCT), OPP operates a program of supervised credit for small family enterprise units. The OPP sewer pipes are financed, constructed, and maintained by the families who live on each street, though one-eighth of the cost of services is provided by the municipal government. Pipes are built under the street, with each household contributing $800 to $1000 toward construction of sewer services. "Lane managers" collect dues from households, and arbitrate disputes. The OPP model has been exported to other cities in Sindh and Punjab. OPP has also helped establish Awami tanks, which are underground water cisterns for use in a local area. Many are located under Orangi's mosques and churches. Localities within Orangi Baloch Goth Bilal Colony Chisti Nagar Raees Amrohi Colony Data Nagar Ghabool Town Ghaziabad Hanifabad Haryana Colony Iqbal Baloch Colony Madina Colony Mohammad Nagar Mominabad Mujahidabad See also Akhtar Hameed Khan City District Government Karachi Khasa Hills Orangi Charitable Trust Orangi Nala Orangi Pilot Project References External links Orangi Website Slums in Asia Shanty towns in Asia Karachi Squatting in Pakistan