Chennai: Terming the Indo-US nuclear deal a 'slave charter', AIADMK supremo Jayalalithaa has sought a Constitutional amendment making it mandatory for the Government to seek Parliament's approval before signing any agreement.

"It is a stand of the AIADMK that a full-scale discussion has to take place in the Parliament for any treaty proposed to be inked with any country and only after both the houses gave their approval, the treaty should come into force," she said in a strongly worded statement here last night.

She said if an amendment to Constitution was not done, secret deals will continue to be entered into, which will be against the country's interests.

 Pointing out the reservations expressed by scientists and opposition parties in the country to various clauses in the agreement, Jayalalithaa said it was a 'slave charter', which impinged 'national sovereignty'.

She said opposition parties, including the AIADMK, had been maintaining that the deal was of no benefit to India.

"The moment it comes into effect, all information concerning India's atomic plants would be at the hands of the US and it would no longer be possible to maintain any secrecy with regard to the researches undertaken by the scientists in the atomic power sector," she said.