Survivors of the Bhopal gas disaster and their supporters rallied near the Indian prime minister's office in New Delhi today on the anniversary of the tragedy.
They called for the prime ministers' intervention to punish the Union Carbide corporation - now owned by Dow Chemicals - and guarantee adequate compensation for the victims.
Over 3,000 died and at least 500,000 others were affected by the methyl isocyanate leak in 1984 and thousands of children born to parents directly exposed to the gas or poisoned by contaminated water are suffering cleft lips, missing palates and twisted limbs.
The victims got only inadequate compensation, pressure group Bhopal Gas Peedit Mahila Udyog Sanghthan convener Abdul Jabbar said.
Mr Jabbar added that both state and central governments were trying to protect multinational companies.
"It is because of this attitude that Union Carbide then chief executive Warren Anderson has not been brought to India to face trial."