. DMRC generates considerable quantity of Food Waste from Metro Bhawan, depots and colonies where canteen facility is provided for its staff. This food waste is rich in organic constituents and has a potential to be used as compost/fertilizer for horticulture. Till 2015, this waste was being sent to Municipal Corporation of Delhi which further found its way to the landfill. In order to make better use of this waste, DMRC has installed Biogas Plant (Bio-box), Organic Waste Convertor and composting pits at metro offices, staff colonies, depots etc to treat and convert organic waste into useful gas and compost. Organic Waste Converter (OWC) is installed at Metro Bhawan and Metro Enclave which transforms food waste into compost. Conversion time for 10 kg waste to compost is 15 minutes. Then, this raw compost is placed for curing for next 10 days. After 10 days of curing, matured compost is available which can be used in horticulture activities of DMRC. Composting Pits have also been constructed at some depots of DMRC to treat organic waste. This bio-degradable waste generated at DMRC depots and colonies were sent to nearest compost pits for its treatment. These are presently constructed at four locations viz. Shastri Park Depot, Mundka Depot, Sarita Vihar Depot and Yamuna Bank Depot. A Bio-gas plant has been installed at Shastri Park depot to convert organic waste in to bio-gas and manure. The plant is first of its kind in DMRC. Organic waste generated from DMRC facilities at Shastri Park viz Depot canteen, colonies and hostels will be utilised in this plant to generate bio gas. The plant has a capacity to process 1000 kg of organic waste per day and convert it into 80-90 n.cum of bio-gas which would then be supplied to depot canteen for cooking purpose. This will save approximately 10,000 litres of cooking gas per annum. In addition to bio-gas, the plant also produces manure which would be used for horticulture works.