A boy searches for recyclable materials in a dumping site in Allahabad. The World Environment Day is celebrated on June 5 every year by the United Nations to stimulate global awareness on environmental issues. (AP)

Boys search for plastic bags on the banks of the River Ganges to clean the river on World Environment Day in Allahabad. (AP)

Bus passengers look at environmental activists wrapped themselves up with branches of a tree riding on a scooter to spread awareness to save trees on World Environment Day in Allahabad. (AP)

Boats are anchored on the banks of the river Ganges as plastic waste floats on water in Allahabad. (AP)

A man prepares to take bath in a polluted channel under a bridge in Amritsar. (AP)

A man bathes in a polluted channel under a bridge in Amritsar. (AP)

Children play at a partially dried up pond on the outskirts of Hyderabad. (AP)

Children look for reusable items at a garbage yard in Hyderabad. (AP)