A day after suspending him from the primary membership of the party, the Congress on Wednesday served a show cause notice to former External Affairs Minister K Natwar Singh.
"The show cause notice, including the suspension order, was sent to Singh late tonight," highly placed Congress sources said.
The Congress Disciplinary Action Committee in a meeting on Tuesday night suspended Natwar from the party and decided to send a show cause notice to him asking why he should not be expelled from the party for misusing his position for procuring oil contacts from Iraq in 2001 under the Saddam Hussain regime.
The show cause notice was served three days after Natwar Singh moved a privilege motion against Prime Minister Manmohan Singh in Rajya Sabha and two days after the Government tabled the Pathak Inquiry Authority report, which indicted the 75-year-old diplomat-turned politician for misusing his position for procuring the oil contracts, in Parliament.
Singh will have to reply to the notice within two weeks. However, a defiant Natwar Singh on Wednesday continued his attack on Manmohan Singh dubbing him as a "weak" PM.
He also questioned the findings of the Authority saying both the panel and the government had "deliberately ignored" certain vital inputs from India's permanent mission to the United Nations.
"I would like to point out that the Justice Pathak inquiry committee has in its own convoluted way totally discredited the basis of Paul Volcker's allegations," Natwar said in a statement.