On August 22 also, BJP members had walked out of the JPC meeting alleging that Congress members had used foul language when they sought inclusion of Prime Minister Manmohan Singh and Finance Minister P Chidambaram in the finalised list of witnesses to be called before the JPC.

The members present in meeting said BJP members led by Yashwant Sinha walked out of the proceedings after Committee Chairman P C Chacko said the panel would first take oral evidence from former Finance Secretary and present RBI Governor D Subbarao, who appeared before the JPC today.

Subbarao was the Finance Secretary between April 2007 and September 2008.

BJP accuses JPC chairman of being 'biased', threatens to quit

After staging a walkout from the meeting of JPC examining the 2G spectrum scam, the BJP on Tuesday accused its Chairman P C Chacko of being 'biased' and threatened to quit the panel, saying a decision in this regard will be taken soon.

BJP leader Yashwant Sinha, who is a member of the Committee, said his party has lost faith in the panel and did not expect it to uncover the truth.

“All of us have come to the conclusion that there is no point in continuing to serve in the JPC because the manner in which the Chairman of the JPC is functioning, it is quite clear that the Joint Parliamentary Committee is not now an instrument for uncovering the truth,” Sinha said.

Alleging that the Committee has become an “instrument” for “putting a cover to conceal and not to indulge in honest inquiry”, Sinha said, a decision on whether the BJP members would continue in the panel will be taken after discussions with the party leadership soon.

Sinha said the party will deliberate on this soon after Thursday's Bharat bandh organised by the party against the diesel price hike and FDI issues.

His statement came hours after the BJP members led by him walked out of the JPC meeting, alleging that they were being “gagged” and not allowed to speak on the issue of finalising the list of witnesses to be called before the Committee.

The BJP members had stormed out of the last JPC meeting on August 22 also following a clash with Congress members.