The opposition will file a petition on Thursday for the removal of the cabinet ministers to be grilled in a no-confidence debate for corruption, and a motion seeking a censure debate against individual ministers on Friday, opposition chief whip Jurin Laksanavisit said on Tuesday.

Mr Jurin, a Democrat Party MP, said after a meeting of the opposition whips that the dismissal  petition would be filed with Senate Speaker Nikom Wairatpanich, and the censure motion with the House Speaker Somsak Kiatsuranont.

Those facing the removal petition are ministers who were believed to be unusually rich, involved in corruption, and to have committed legal offences.

The senate speaker would examine the petition before forwarding it to the National Anti-Corruption Commission.  If the NACC found the petition to have grounds, it would ask the Senate to remove a minister found guilty of corruption or legal offences.  A vote of three-fifths of the entire Senate is required to remove a cabinet minister.

Mr Jurin declined to disclose which ministers are to be censured and who will be named in the removal petition.

He said the Rak Thailand Party and Bhumjaithai Party had confirmed they would to take part in the censure motion.

The opposition parties would hold a meeting to discuss issues to be raised in the censure debate, to avoid  repetition.

The no-confidence debate had been tentatively set for Nov 25-26, and the vote would be on Nov 27, he said.

Mr Jurin said when the House meets on Thursday and Friday the opposition would ask the government to explain about the report of an assassination plot against former prime minister Thaksin Shinawatra.

The opposition had strong doubts that it might have been fabricated to win sympathy, he said.