New Delhi, Sep 12 (IANS): The Bharatiya Janata Party (BJP) Wednesday made light of the Samajwadi Party's (SP) pitch for a Third Front and its criticism of the central government and dared it to withdraw support to the Congress-led UPA.

"Before he starts talking of a Third Front, he should first set the country free of Congress-led UPA," BJP spokesperson Rajiv Pratap Rudy said here.

He said the SP had not disappointed the Congress and was "part and parcel of the UPA".

"What is the SP after all? It is a regional party which has 19 MPs (in Lok Sabha). It contests against the Congress in Uttar Pradesh and supports the Congress in Delhi," he said.

Citing instances, he said the SP had supported the government during cut motion on price rise and on the issue of summoning witnesses before the the Public Accounts Committee of parliament during its examination of 2G spectrum report.

Referring to SP leader Mulayam Singh Yadav's remarks about the Congress being "scam- tainted", Rudy said it was the right time to withdraw support to the central government.

"If convinced that the UPA is corrupt, withdraw support," Rudy added.

He said with the Left parties weakened, there was no scope of a Third Front emerging and the 2014 general elections would be between the Congress-led United Progressive Alliance (UPA) and the BJP-led National Democratic Alliance.

The SP Wednesday urged regional parties to forge a Third Front and said it was determined to ensure that no government takes office in New Delhi without its support.

Party chief Mulayam Singh said in Kolkata that the Congress was "demoralised" and "neck deep in corruption" and the BJP was in a limbo.