Last summer, Chennai became the world’s first major city in which there was no water for residents to drink. But, as climate change makes flooding and drought more common, the city of 8 million is unlikely to be the last to run dry.

Industry economist sees major growth trend in India's construction market.

An array of factors, ranging from difficult terrain to political unrest, challenge contractors trying to build in the Himalayas and other difficult-to-reach locations.

City planners aim to build Amaravati with an eye toward smart infrastructure and sustainable living.