Construction Of Indoor Stadium For National Centre For Indian Maritime University, Vangali(v), Sabbavaram (M), Visakhapatnam, A.P. Including Internal And External Water Supply, Sanitary Installations, Drainage, Internal Roads, Ug Sump, Iei Fans, W Ater Coolers, Split Type Ac Units, Fire Fighting With Downcomer System, Addressable Fire Alarm System, Cctv System, Lan System And Av System