The opposition is gearing up to grill the government in a general debate tentatively planned for shortly after the New Year as it zeroes in on what it describes as the unethical appointment of the prime minister's new secretary-general.
Pheu Thai Party leader, Cholnan Srikaew, said on Wednesday the opposition was working on the motion and close to wrapping it up.
The bloc expects it will examine the proposal to hold a general debate for the last time on Dec 26 before submitting it to the parliament president no later than Dec 28.