Urban industrial wastes contain organic matter such as leaves, vegetable wastes which, on a dry basis, have calorific values comparable to other biomass like wood. Scientists at the Combustion Gasification Propulsion laboratory, Indian Institute of Science in Bangalore, India, have recently developed cyclone gasifiers that can utilise these wastes for either thermal or electrical power generation. Any combustible powdered material in reasonably dry form (with a moisture level of 15 per cent) can be gasified to obtain producer gas in the cyclone gasifier. There are numerous advantages of the gasification technique for power generation from organic solid wastes. It can easily handle material high-ash content and produces clean air that can be utilised directly in internal combustion engines.