A few Opposition parties are moving towards introducing an impeachment motion in the Rajya Sabha against Chief Justice of India Dipak Misra, The Times of India reported on Wednesday. An impeachment motion in the Upper House requires the signatures of at least 50 members.

Top Opposition leaders held a meeting on Tuesday to formulate their stand on the proposal, the daily quoted unidentified party officials as saying. They have reportedly come up with a draft petition that is based on the complaint that four senior Supreme Court judges raised during a press conference on January 12. The petition, which reportedly alleges that Misra has not addressed the problems that were flagged, has been shown to different party leaders for their suggestions and approval, and has been signed by 20 lawmakers, according to NDTV.

“The Congress as the largest opposition party has belatedly initiated the proceedings for impeachment of the chief justice of India,” Nationalist Congress Party leader Majeed Memon said. His colleague DP Tripathi also said he had signed the petition.

Memon told The Hindu that NCP chief Sharad Pawar has already signed the petition. Five members of the party have reportedly also given their consent.

The Congress has also approached Rajya Sabha members belonging to the Dravida Munnetra Kazhagam, the Samajwadi Party, and the Left parties, The Indian Express reported. West Bengal Chief Minister Mamata Banerjee, who discussed the matter with advocate Prashant Bhushan in New Delhi on Tuesday, told reporters that the her party would “go with what others decide”.

Congress spokesperson Randeep Surjewala, however, played down the news reports about the impeachment motion. “As of now, there isn’t much substance in these reports,” he said.

Meanwhile, former Attorney General of India, Soli Sorabjee said the proposal was a “highly ill-conceived move”, ANI reported. “I am totally against it,” he said.