Bangalore -Jolarpettai Section: Sw-I: Replacement Of Steel Girder With Psc Slab Of Bridge No. 683 At Km 246/100-200 Exg. Span 2X12.20 Up And Down In Aden/Bangarpet Subdivision. Sw-Ii: Replacement Of Steel Girders With Psc Slabs 1X11.52M For Bridge No. 838/B Up And Down Line At Km. 347/500-600 Between Bengaluru East Bnce - Byappanahalli Bypl Stations. Maintenance Period Is 6 Months Or One Monsoon Period Whichever Is Later.