This document discusses the design of a water supply distribution network for Vellore, India. It begins by outlining the methodology, which includes understanding the existing network, collecting population data from the past 5 decades to calculate present and future water demand, and planning a new network to meet future needs. Population and water demand data for Vellore is presented, showing steady growth over time. Three methods for projecting future populations in 2040 and 2050 are analyzed: arithmetical increase, incremental increase, and geometric increase. Based on these projections, future water demands in 2040 and 2050 are estimated to be 114.5 MLD and 145.625 MLD respectively. A timeline for completing the project is also included.