Tender For annual maintenance of opgw of different sizes viz. 8/12/24/48/96 fibre opgw strung on 400/220/132 kv transmission line tower or laid underground located in different parts of cg including maintenance of approach cable, fodp etc. and opgw stringing work in live line/of line conditions for replacement of damaged opgw and old/ defective earthwire, laying of approach cable, splicing/ jointing/ testing/ commissioning of opgw, replacement of opgw junction box, hardware & fittings etc, as per requirement for two years