bids are invited for custom bid for services - 1001484 voc monitoring for three quarter in the refinery every quarter monitoring to be carried out at approximately 12000 points total mo 72000 p qty to be quoted in gem including gst , custom bid for services - 1001485 voc monitoring for once in a year in the refinery as per the specification total number of points to be monitoried is approximately 240000 p qty to be quoted in gem including gst , custom bid for services - 1025917 noise level monitoring inside the refinery premises 4000 au qty to be quoted in gem including gst , custom bid for services - 1025918 noise level monitoring outside the refinery premises 480 au qty to be quoted in gem including gst implement iot sensor- based measurement and monitoring of rural water supply systems system integration service to implement iot sensor- based measurement and monitoring of rural water supply systems total quantity :