Rediff.com's MI Khan reports from Patna: Ninety-one BJP MLAs walked out from the Bihar assembly today soon after Chief Minister Nitish Kumar moved the Trust Motion.

The BJP legislative party leader in the assembly, Nand Kishore Yadav, announced in his address that the BJP has decided to boycott the trust motion.

"All the BJP's MLAs will walk out," he said.Yadav, who is now leader of the state assembly, accused the CM of betraying the people of Bihar by ending its alliance with the BJP.

Nitish Kumar is set to prove the majority on the floor of the state legislative assembly today, three days after the JD-U ended its 17-year-old alliance with the BJP and the chief minister sacked all 11 BJP ministers from his cabinet.

The JD-U has 118 MLAs, four short of the magic number of 122 required to prove the majority in the Bihar assembly. It has managed support for four independent MLAs. The sole MLA of the CPI is likely to abstain along with four Congress MLAs. The BJP has 91 MLAs and RJD has 22 in the house of 243 members.