Water management problem are one of the major concerns in the Indian Territory due to decrease in water level alongside mismanagement of water distribution systems. It was found that the earlier drinking water supply networks has many drawbacks and indeed requirement to modify them. So, there are several governments projects having major concern to mitigate the leakages, unnecessary loss, tap modification, reservoir and best water distribution system. Hence, this study provides an efficient approach to improve water distribution system with minimizing the cost alongside fulfillment of adequate water demand and pressure to the consumer end. The procedure opted to design that should satisfied the parameters like pipe material, velocity of flow in pipe, residual nodal pressure, reservoir level, unit head-loss, peak factor and available commercial pipe diameters in adherence to the CPHEEO manual clauses. This study also simulates the water distribution network and calibrates the different parameters for implementing in the rural area. Therefore, a case at Cossipore, located in the Northern part of East Kolkata in West Bengal, India was carried out. In order to mitigate the menace of high arsenic concentration in ground water in the district, it was decided to supply surface water with adequate and proper treatment for human consumption as a long-term measure to save the people from Arsenic contamination. The water loss management in the Cossipore service zone, taken up as a pilot project in Kolkata towards the improvement of quality and the sustainability in water supply and specifically in water distribution management.