At least three key opposition leaders - Mamata Banerjee, Mayawati and her ally Samajwadi leader Akhilesh Yadav - are likely to skip the post-election opposition meet in Delhi that will be hosted by the Congress. Sources said Andhra Pradesh Chief Minister Chandrababu Naidu, who had gone to Bengal last week and met Mamata Banerjee, received a negative when they discussed the meet. There is no need for any meeting before the results come out on May 23, she told Mr Naidu, sources said. Negative responses have also come from Mayawati.