New Delhi, April 15 :     ADMK chief Jayalalitha today offered her party?s unconditional support to a Sonia Gandhi-led Congress government in the event of the Vajpayee regime?s fall. Confident of Vajpayee?s exit, Congress leaders today began preparations for a Sonia Gandhi-led alternative with outside support from third front parties. The Uttar Pradesh Congress Committee and Bihar Congress legislature party passed resolutions today and faxed them to 10 Janpath, urging Sonia Gandhi to take the leadership of the country. After her 90-minute meeting with the AICC chief, Jayalalitha said her party was keen to be part of the new government. ?The ADMK had been part of a coalition government. There is no question of the ADMK not being willing to join an alternative government,? she said. Sources said a range of issues, including the revival of a Congress-ADMK pact in Tamil Nadu, figured in the meeting, with both leaders agreeing to a ?lasting relationship? between the two parties. Jayalalitha eluded reporters after meeting Sonia Gandhi as she left through the rear gate of 10 Janpath. Officially, there was no word from the Congress about the meeting. But Jayalalitha spoke to reporters at her hotel. She claimed that Sonia Gandhi had not yet made up her mind about formation of the new government. The ADMK chief will meet Sonia Gandhi again on Saturday after the trust vote. ?They will meet after the fall of the Vajpayee government,? said Janata Party president Subramanian Swamy. The unanimous view in the Congress is that Sonia Gandhi should be Prime Minister even if the party is forced to head a coalition government and share power with the Rashtriya Loktantrik Morcha (RLM), ADMK and other smaller parties. Sonia Gandhi, however, is reluctant to head a shaky formation and is considering Manmohan Singh, Sharad Pawar or Arjun Singh for the top job if the Congress is forced to head a coalition. Her preference is to lead a minority government with outside support from parties like the RLM, ADMK and others. The Left is working on a strategy which revolves around the Congress forming a minority government and allies extending issue-based support. The Left feels the allies of the new government must leave the nuances of governance and levers of power with the Congress. Despite the 10 Janpath shortlist, Congress MPs feel that Manmohan Singh lacks the political acumen to lead a coalition. Arjun Singh?s prospects are thought to be dim because he has lost two successive Lok Sabha polls. Leader of Opposition Sharad Pawar, who enjoys considerable influence among a section of Congress MPs, is not entirely trusted by those close to the party leadership. Sonia Gandhi chaired a high-level meeting at her residence to assess the political situation. The leadership has summoned Orissa chief minister Giridhar Gamang, a Lok Sabha member. Madhya Pradesh chief minister Digvijay Singh is also in the capital to mobilise support for the Congress. Pawar met Mulayam Singh, Laloo Yadav and others last night. The meeting continued till early Thursday morning. Pawar was in favour of a minority government headed by Sonia Gandhi, but Mulayam was keen on a coalition government headed by any Congress leader, including Sonia Gandhi. Mulayam Singh and Laloo Yadav have offered a ?Tamil Nadu-type? poll pact with the Congress in Uttar Pradesh and Bihar. As part of the agreement, the Congress will have to leave out a majority of Assembly seats for the two Yadavs in two states, while it will have an upper hand in candidates for the Lok Sabha polls. But there are few takers for the proposal in the Congress. The Congress today issued a three-line whip to its members to be present in the Lok Sabha during the debate and vote.