Tender For sw-i : dornakal jn : dornakal freight depot : augmentation of freight maintenance facilities. sw-ii : dornakal jn : improvements to health unit at dornakal. sw-iii : kzj - bza section : dkj : replacement/renovation to community hall & railway institute at dornakal. sw-iv : dkj-mugr section : bdcr: replacement/renovation to community hall & railway institute at bhadrachalam road.