Bookanakere Siddalingappa Yediyurappa, often referred to by his initials
BSY, is an Indian politician. He is currently serving as a member of the Bharatiya Janata Party (BJP) National Parliamentary board committee since 17 August 2022, which is considered the highest office of authority in the party. He served as the 13th Chief Minister of Karnataka, and he was former Member of the Karnataka Legislative Assembly between 1983 - 2022 in different timelines. He is a member of the Bharatiya Janata Party. He is also the only politician in Karnataka so far to have served four times as the Chief Minister and three times as the Leader of the Opposition in the Karnataka Legislative Assembly. He is the longest serving BJP Chief Minister of Karnataka. He is former MLA from Shikaripura constituency in Shimoga district, from where he has been elected eight times.