A cash prize of 20,000 pounds each were also given to them at a ceremony held in London on Thursday night.
The prize, worth 40,000 pounds, was announced yesterday night by noted environmentalist and broadcaster, Sir David Attenborough.
Two Indian enterprises have won top prizes at this year's prestigious Ashden Awards for sustainable energy, popularly known as the 'Green Oscars'.
A Kerala company involved in tackling the problem of dumped food waste and a Karnataka firm that has provided thousands of rural families dung-based biogas plants are among 10 global projects shortlisted for the Ashden Awards
