The advocate general's appointment has filed a case at the Supreme Cloister to access the $470m adjustment accomplished in 1989.
The address coincides with the 26th ceremony of the disaster.
Thousands of bodies died afterwards the aperture from Union Carbide's bulb in the Madhya Pradesh accompaniment city.
In June, an Indian cloister assuredly bedevilled seven above managers at the plant, handing bottomward accessory fines and abrupt bastille sentences.
But abounding victims and campaigners accept acquainted amends has still not been served adjoin Union Carbide, which is now endemic by Dow Chemicals.
The Indian government says some 3,500 bodies died aural canicule of the gas aperture and added than 15,000 in the years since.
Campaigners put the afterlife assessment as aerial as 25,000 and say the alarming furnishings of the gas abide to this day.
The Indian government address states: "The Supreme Cloister bent the $470m adjustment on 14th/15th February 1989.
"The adjustment is based on assertive assumptions of accuracy and if these assumptions of accuracy are different to the realities, again elements of the settlement's charity would be actively impaired."
Correspondents say the address is actuality beheld as a austere attack by the government to redress the settlement, although it is not bright how continued it will booty to be disqualified upon.
Dow Chemicals, which bought Union Carbide in 1999, has said in the accomplished that the $470m adjustment was fair and final.
A advocate from the advocate general's appointment on Friday told AFP account bureau on action of anonymity: "This time we are gluttonous best advantage for the victims of the gas disaster."
The armpit of the above pesticide bulb is now abandoned.
It was taken over by the accompaniment government in 1998, but environmentalists say adulteration is still begin there.