Working survey, soil investigation, design of storm water collection project, work including providing, supplying, lowering, laying, jointing, testing and commissioning of r.c.c np3 pipe for main and branch storm water collection pipeline network, construction of machine hole chamber, construction of catch basin chamber, rcc lining of natural drain, revamping of existing natural drain and construction of ground water recharge capsule, construction of outfall structures at various discharge point, removal & de-silting of existing channel/pipeline and supply of de-silting equipment (grab bucket with jetting arrangement) for vapi storm water drainage project work including maintenance & repair for 24 months, district valsad.