bids are invited for custom bid for services - annual maintenance contract of 242 nos of fog safe devices a paul make of fzr ldh juc asr ptk and jat with supply of spares on need basis for one year , custom bid for services - supply and replacement of 121 nos gps antenna for fsd a paul makes or similar on need basis , custom bid for services - supply and replacements of 97 nos batteries for fsd a paul make or similar approved as per rdso spec no rdsospn2012010 on need basis , custom bid for services - supply and replacement of 73 nos battery charger 140 v rated current 338 amp rated power 30 w with led indicator frequency range 4763 hz protection 90110 constant current mode and over 300 pulsing mode connector type p1j 2 - annual maintenance contract for networking devices (version 2) total quantity :