Three-year-old Abdul, who suffers from mental and physical disabilities plays with his mother Rukhsana at their house in Bhopal November 13, 2014. Abdul receives treatment at a rehabilitation centre supported by Bhopal Medical Appeal which only treats families they believe have been affected by the Union Carbide gas leak 30 years ago. Human rights groups say that thousands of tonnes of hazardous waste remain buried underground, and the government has conceded it is contaminated. There has, however, been no long-term epidemiological research which conclusively proves that birth defects are directly related to the drinking of the contaminated water. REUTERS/Danish Siddiqui (INDIA - Tags: ENVIRONMENT HEALTH DISASTER BUSINESS INDUSTRIAL AGRICULTURE)

ATTENTION EDITORS: PICTURE 14 OF 29 PICTURES FOR WIDER IMAGE STORY 'BHOPAL - 30 YEARS ON'
SEARCH 'BHOPAL SIDDIQUI' FOR ALL IMAGES