Former West Bengal chief minister Buddhadeb Bhattacharjee has questioned his successor Mamata Banerjee's honesty, prompting an angry rebuttal today from Trinamool Congress which demanded an apology from the CPI-M veteran.

"I don't agree with the perception that she is honest," Bhattacharjee told a Bengali news channel last night when asked whether he agreed with the popular perception that Banerjee was honest. Asked to elaborate, he asked the news channel to make its own investigation.

The ruling Trinamool Congress said Bhattacharjee's remarks were unfair. "What he has said is unfair.