The Left parties have given notices of breach of privilege against Prime Minister Manmohan Singh [Images] in both Houses of Parliament on the issue of Indo-US nuclear deal.

The Left would raise the issue in both Lok Sabha and Rajya Sabha on Monday, CPI(M) leader Sitaram Yechury told reporters on Friday.

He said the prime minister had assured the Lok Sabha during the reply to the confidence vote that his government should be allowed to go to the IAEA and NSG and after that he will come back to Parliament.

Singh had assured that he would abide by what the Parliament says before operationalising the deal, Yechury said.

"But he has not done that...with signing of the deal between External Affairs Minister Pranab Mukherjee and US Secretary of State Condoleezza Rice [Images], the nuclear deal has been operationalised," he said.

"This is a serious breach of parliament's privilege. The Prime Minister has violated his own assurances to the House," the CPI(M) leader said adding that "we want to the matter to be taken up immediately."

At the same time, he made it clear that the Left does not want any further discussion on the deal as it has already been clinched "despite majority of Parliament not wanting it".

CPI leader Gurudas Dasgupta, who also addressed the press conference, remarked "instead of coming to our Parliament as assured by the Prime Minister, the government went to US Parliament to get its approval."