Opposition members will move the Supreme Court against the rejection by Rajya Sabha Chairman M. Venkaiah Naidu of the impeachment motion against the Chief Justice of India, Congress leader Kapil Sibal said on Monday.

The former Union Law Minister told the media: "The order by the Chairman is unprecedented, illegal, wrong and unconstitutional."

He said it was the first time an impeachment motion was rejected at the admission stage.

"It is illegal because the Chairman has passed the order which is required to be passed after conducting an enquiry," he added.

"We will move the Supreme Court to challenge the order," he said.