The opposition to the Manmohan Singh [Images] government gained further momentum on Sunday with the United National Progressive Alliance, the Bahujan Samaj Party and the Left parties jointly declaring their resolve to go for the kill.

"Our one-point programme is to oust the UPA government on July 22," declared BSP supremo Mayawati in the presence of Communist Party of India � Marxist General Secretary Prakash Karat and Communist party of India leader A B Bardhan.

Karat expressed confidence that the Congress-led United Progressive Alliance government will lose the trust vote on July 22.

"The deal is doomed and so is the government," Karat said at a press conference in New Delhi on Sunday.

"We discussed strategies to topple the UPA government at the residence of Telugu Desam Party leader Yerran Naidu. The government had made a commitment that it would not sign the nuclear deal before securing the vote of confidence in Parliament. But the officials of the government hurried through the deal and left for Vienna to get the deal okayed by the International Atomic Energy Agency," he said.

He warned the government of a 'revolt' if it tried to push the nuclear deal in spite of losing the vote of confidence. "We will meet on July 23 and decide our future course of action," informed Karat.

Leaders from various political parties � including Chandrababu Naidu [Images] from the TDP, H D Kumaraswamy from the Janata Dal - Secular, CPI-M leaders Prakash Karat and Sitaram Yechury, A B Bardhan and D Raja from CPI, BSP supremo Mayawati and Abani Roy from the Forward Bloc � attended the meeting at Naidu's residence.
 
He accused Mulayam Singh Yadav of betraying the Left parties on three different occasions -- in 1999, during the presidential election in 2002 and now -- when he has teamed up with the Congress.

"At one time, he had led the secular forces in Uttar Pradesh and now he has lost that authority," Karat said.