Survivors of the deadly 1984 Bhopal gas leak are holding a "Special Olympics" with children suffering birth defects from the tragedy.
The event Thursday is intended to shame Olympic sponsor Dow Chemical Co. a day before the London Games begin.
The activists say Dow owes them compensation for the industrial disaster and have campaigned to have them dropped as a sponsor of the games. Dow says it has no liability because it only bought the company responsible for the plant after the cases had been settled.
Bhopal activists say their protest games will include a crab race, a 25-meter sprint and "assisted walking."
They are also trying to embarrass the British for what they say is a lengthy history of oppression of their former colony.