construction of 300 mm and 600 mm cc drain and culverts 1) ep.no.5510/a 8/2 to ep.no.ss 10/a 8/3 (300 mm cc drain) 2) ep.no.ss 6/a 3/2 visakhapatnam main road to market yard boundary wall (300 mm cc drain and culvert) 3) ep.no:ss 10/a 8/2 (600 mm culvert)