New Delhi, July 9 (ANI): The BJP-led National Democratic Alliance met at opposition leader L K Advani's residence on Wednesday, and demanded that the UPA Government should be asked to prove its majority within a week.

The NDA decided to approach President Pratibha Patil in case the trust vote doesn't take place soon. It also demanded that a special session of Parliament be convened at the earliest.

Earlier, the BJP alleged the timing of Left parties' withdrawal of support to the government was "suspicious" as they waited till the Congress clinched a deal with the Samajwadi Party to save the ruling dispensation.

"The timing is suspicious. Were they waiting for the Samajwadi Party to cosy up with the Congress? One thing is sure that the Left were waiting for an opportune time, so that the government does not fall," BJP spokesperson Rajeev Pratap Rudy told reporters here.

The BJP alleged that the Left has facilitated a "private deal" between the SP and the Congress.

"The private deal between the SP and the Congress needs to be made clear by the government. It is managed more or less by the Left parties who are the patrons of UNPA," the BJP said.

Manmohan to meet President Patil on Thursday

President Pratibha Patil today asked Prime Minister Manmohan Singh to meet her on Thursday. 

With the Left parties formally withdrawing support to the UPA Government, which is bracing itself for a confidence vote.

Earlier, top leaders of CPM, CPI, Forward Bloc and RSP met President Pratibha Patil at Rashtrapati Bhavan and handed over separate letters withdrawing support and a joint communication asking her to "direct the Prime Minister to seek a vote of confidence in the Lok Sabha immediately."

Shortly after the Left's move, the Samajwadi Party submitted a fresh letter to the President backing the government.

A war of words erupted with the Left leaders accusing the government and the Congress leadership of "disregarding" the majority voice in Parliament on the Indo-US nuclear deal.

With the support of SP, PDP and some Independents, the government hopes to garner 272 for a simple majority in the Lok Sabha, which has an effective strength of 543. (ANI)