bids are invited for custom bid for services - contract for servicing, upkeep operational support--monthly lumpsum charges for comprehensive servicing, upkeep, and operational support across the machine shop, valve section, central tool room (ctr), and garage, as detailed and outlined in annexure a and annexure b. over time charges for expert technician for working/ standby / misc. minor jobs beyond normal 8 hrs. working hours on normal weekdays and deputation of manpower on sundays / holidays over time charges for technician for working/ standby / misc. minor jobs beyond normal 8 hrs. working hours on normal weekdays and deputation of manpower on sundays / holidays.