supplying and erecting under ground cable for traffic signal , supplying and laying of multiicore armoured solid core copper conductor pvc insulated & sheated cable fo 1 . 5 sq mm c / s area as per i . s . 1554 standard a ) 7 core cable , b ) 16 core cable , making trench of suitable width and depth in soft soil for laying provided lt cable up to and including 16 sq . mm complete as per specification no . cw-exn-ctr dsr no . 16-1-1 , supplying and laying ( including excavation of suitable width & depth up to 90 cm ) 50 mm outside dia . double wall corrugated pipes ( dwc ) of hdpe for enclosing cable below ground / road surface to required depth complete . dsr no . 7-6-9 , making cement concrete foundation including excavation ( 60x60x150 ) cm deep in 1:3:6 cement concrete , ( 20 to 25 ) mm stone metal with necessary curing and finishing complete . ( for stay ) dsr . no . 16-3-6 , providing meter box made of crca sheet as requirement for energy meter as required on site ( non dsr ) , gst12%