Design, construction, testing, commissioning of 2 Nos Rapid Gravity Filter plants each of 20 MLD capacity & 15 MLD capacity using sand as filter media including all Civil, Mechanical, Electrical & Instrumental accessories and other infrastructural facilities such as interconnecting pipelines, laboratory building etc., duly complying with relevant IS codes in the design of plant components including trial run for 90 days and comprehensive operation & maintenance of plants for a period of five years near GDK 1 incline fan house at RG-I Area, Godavarikhani, Peddapalli Dist., Telangana State.