Bhopal : Survivors of Bhopal gas tragedy will go on indefinite dharna from Tuesday demanding that actual figures of those killed and injured be presented before the Supreme Court when the curative petition comes up for hearing. Non-government organisations (NGOs) fighting for the tragedy survivors allege despite assurances by the chief minister, government has done nothing in the matter. The NGOs said government needs to act to set the record straight so that victims, waiting for justice for more than 25 years, can get succour.