tender for ring compost , ring compost , a) ferro /cement ring of internal diameter 0.7 m, thickness 2.5 cm and height 0.5 m placed over a circular ferro cement slab of dia 0.75 m and thickness 2.5cm. the ring will have a hole of dia 2.5cm at the bottom for the leachate to flow out. b) circular ferro/cement cover slab of 0.75m diameter and 2.5 cm thick with central circular hole of 0.30m diameter to cover the ring , a lid which can be removed and refitted back for loading the waste into the ring and closing it tightly after loading the waste. infrastructure requirement two sets of circular ferro-cement rings resting on circular ferro-cement slabs and covered by another circular ferro -cement slab with provision fo loading the waste from the top and removing the compost from the bottom, when ready.base layer with cow dung ( approximately 5 kg) powder. surgical hand gloves for handling waste & manure as specifed in the order as per the order no 34/2024 /lsgd dated 04.01.2024