More than half of the world's people live in cities today. By 2050, nearly seven in ten people will be living in cities. Cities account for more than 70 per cent of global carbon emissions and 60 to 80 per cent of energy consumption. Rapid urbanization has created additional challenges such as social inequality, traffic congestion and water contamination and its associated health issues. says governments and municipalities can use information and communication technologies (ICTs) and other technologies to build smarter and more sustainable cities for their citizens.