New Delhi, Sept 11: Uttar Pradesh Chief Minister Mulayam Singh Yadav today met Prime Minister Atal Bihari Vajpayee at his Race Course Road residence here. The meeting was officially described as a courtesy call. Yadav is on his first visit to the national capital after he took over the chief ministership of the state following the fall of the BSP-BJP coalition headed by Mayawati. Yadav, who won the vote of confidence in the state assembly on Monday with a huge margin of 90 votes, had met Sonia Gandhi last night and made a strong plea for Congress' participation in his coalition government. Bureau Report