supplying , laying , testing commissioning of gi pipe line along water channel and the cliff of hills , construction of water tanks and making connection with all poly pipes in place at the rangpo station yard with the tanks to divert and restore the supplying , laying , testing , commissioning of gi pipe line along water channel and the cliff of hills , construction of water tanks and making connection with all poly pipes in place at the rangpo station yard with the tanks to divert and restore the , supplying , laying , testing & commissioning of gi pipe line along water channel and the cliff of hills , construction of water tanks and making connection with all poly pipes in place at the rangpo station yard with the tanks to divert and restore the water supply between khanikhola to majhitar at rangpo yard ( e ) sikkim of sivok-rangpo new bg rail line project , schedule a: civil works , schedule b: pipeline works , schedule c: steel works , scheduled: unforeseen items of work as perm ussor 2010 of n . f . railways , gst @ 12%