SPECIAL REPAIR TO MAIN SEWAGE SYSTEM OF BLDG NO P 135 TO P 142 OF JCOs MD ACCN AT NAR BAHADUR CHHETRI COMPLEX SECTOR C2 AND SPECIAL REPAIR TO EXISTING CI DI GI WATER SUPPLY PIPELINE IN ENGR BR REGT AND CONNECTING AREAS UNDER GE UTILITY AMBALA CANTT (投標 №111932647cn)