Indian women use bare hands to pick reusable pieces from heaps of used coal discarded by a carbon factory in Gauhati, Assam The collected pieces will be reused for cooking food.

A participant shows the cooked meal during the solar energy conservation programme 'Maha Suryakumbh', in Bhopal.

A view of the Rashtrapati Bhawan during Earth Hour in New Delhi.

Earth Hour in Bhopal.

Prime Minister Narendra Modi fixes an LED bulb with Lt. Governor of Delhi, Najeeb Jung during the launch of National Programme for LED Street Lighting and LED Home Lighting, in New...

Prime Minister Narendra Modi along with Union Minister for Science & Technology Harsh Vardhan, MoS for Power and Coal, Piyush Goyal and Lt. Governor of Delhi, Najeeb Jung during th...

President Pranab Mukherjee presenting a prize for a painting competition to a child during the inauguration of National Energy Conservation Day 2012 and presentation of National Co...

Children take part in a rally on the occasion of National Energy Conservation Day, in Faridabad.