Tender For corrigendum : consultancy services for authoritys engi.or supervision of improve.and upgradation ofnewly declared nh227b(84 kosi parikrama marg)packagev, from designkm.140.960(patranga)to km.160.200(bahuvan madar majha) d/l19.240 km.on(epc) modein the state of u.p