Comprehensive Operation & Maintenance of Civil & Mechanical assets such as intake wells/ structures or offtake structures, elevated service reservoirs ( E. S. R ), HGLR, sump, water treatment plant, chemical house, staff quarters, pump house, all bulk transmission and distribution pipelines, valves pumping machinery & electrical equipment etc. for the Gaypagla Regional water supply scheme, including supply of 8. 52 MLD potable water to all the 36 villages for 06 months period. Taluka: Kamrej, Mandvi, Mangrol & Olpad, District: Surat based on Tapi River. Excluding supply of PAC, bleaching powder and chlorine gas. ( 2nd Attempt )