CONTRACT KAC-2: CONSTRUCTION OF VIADUCT FROM PETTA TO S. N. JUNCTION INCLUDING 2 ELEVATED STATIONS (VIZ. VADAKKEKOTTA & S. N. JUNCTION) AND TWO-LANE BRIDGE ACROSS PANAMKUTTY RIVER ALONG WITH METRO VIADUCT FOR PHASE 1 EXTENSION OF KOCHI METRO RAIL PROJECT (FROM EXISTING CHAINAGE 25172.00M TO 26962.00M), EXCLUDING ARCHITECTURAL & BUILDING SERVICES WORKS OF STATIONS