Tender For annual maintenance contract for opgw adss communicationnetwork under ehv o&m div-baramati-service- 1 fo-splicing ea, 2 testing of otdr ea, 3 installation of adss cable-live ehv line km, material-3 10m mm st-st duplex fiber patch cord ea, 4 1m st mm pigtail ea, 5 adaptor sc mm duplex ea, 6 rj45 connector ea.