Smart cities aim to use information and communication technologies to improve efficiency and sustainability in urban areas while reducing costs. Sensors around the city monitor various factors and transmit data to authorities to facilitate better planning. Technologies used include CCTV, traffic sensors, and crime prediction software. At the proposed GIFT City in Gujarat, a smart waste management system uses underground pipes and plasma incineration to efficiently dispose of waste and generate power. The smart city development models include retrofitting existing areas, redeveloping areas over 50 acres, and greenfield development on over 250 acres of vacant land.