CHENNAI: To improve basic infrastructure facilities in cities and urban areas in the state, Tamil Nadu government today decided to start a scheme at a cost of Rs 6,653 crore. Under the "Integrated Urban Development Scheme", basic infrastructure, including drinking water, sewage water removal, health, rain water drainage, roads and streets, solid waste management, parking facilities and parks will be improved in corporation and townships at a cost of Rs 5,890 crore, an official release said.