Providing, lowering, laying, jointing, testing and commissioning of sewer collection network and designing, constructing, testing & commissioning and defect liability period for 3 years of ( 1 ) providing and laying sewer pipe line at dhobi society to jawaharnagar railway colony area ( 2 ) providing and laying sewer pipe line at from hill park bridge to tilaknagar bridge, bhavnagar under amrut- 2 grant.