To maintain C/N ratio as 37%, a total of 25 kg mass was used for composting, including vegetable waste (10 kg), cow dung (7.5 kg), grasses (5 kg), food waste (2.5 kg), and mature compost (starter; 2.5 kg). Mature compost was prepared earlier by composting vegetable wastes, grasses, food wastes and cow dung for one month.