CPI(M) General Secretary Prakash Karat told reporters that his party had earlier opposed the introduction of the Nuclear Liability Bill.
"But in case the government tries to bring it again, we would oppose it both in the Lok Sabha and Rajya Sabha as it compromises on the citizens' right to life and health".
Karat described the bill as pro-nuclear suppliers as the bill does not underline any responsibility to the American nuclear companies who would be supplying the reactors.
"In case of any untoward incident because of manufacturing defect, there would be no onus on the supplier to provide compensation," he said.
Karat noted that a nuclear disaster would be of a much greater magnitude than the Bhopal gas tragedy.