BJP president Nitin Gadkari on Sunday said his party would fully support the Trinamool Congress' plan to bring a no-confidence motion in Parliament.

"A hundred per cent. We will support her...There is one formula," Gadkari told a TV channel and maintained that the ruling UPA government has no moral authority after it lost its majority in Parliament, after TMC exited the coalition.

The BJP and TMC together have 133 MPs in Parliament.

With the BSP expected to make up its mind on the issue soon, though, the CPI is likely to support a no-confidence motion, the government is hopeful to sail through the motion with cooperation from the SP and other Left parties.

Mamata Banerjee's TMC, which was the biggest ally of the Congress, walked out of the UPA government protesting against government's big-bang reforms, such as allowing foreign direct investment (FDI) in multi-brand retail and raising the cap on FDI in the insurance and opening up of the pension sector.

UPA's second-biggest ally, the DMK too, is opposed to FDI in multi-brand retail.

Banerjee said that these important decisions, which have direct bearing on the livelihood of millions of Indians, taken by a minority government, "are immoral and unethical".

The government had earlier reached out to the BJP for support.