Description :widening and upgradation of existing highway from khagaria (design ch. 270.000) to purnea (design ch. 413.529) section of nh 31 and nh 231 to 4 lane with paved shoulders under nh (o) on bot (toll) in the state of bihar (2 nd call) 110075 : nhai hq
open tender | national highways authority of india||head office - nhai||technical - nhai |