Powered by cutting-edge technologies, a clutch of Indian start-ups has developed out-of-the-box solutions to reduce pollution and generate clean energy.

'We collaborated with IIT Delhi and were trying to solve the problem of people who often compromise on their personal hygiene due to no or limited water availability,' said Puneet Gupta

Four days after Tropical Cyclone Idai made landfall, emergency teams in central Mozambique fanned out in boats and helicopters, seeking to pluck survivors from roofs and treetops in an inland sea of floodwater, sometimes in the dead of night