Karnataka Chief Minister Siddaramaiah during 'Meet the Press' programme at the Press Club in Bengaluru, on Sunday. Pic/PTI

Karnataka Chief Minister Siddaramaiah on Monday sent legal notice for criminal and civil defamation to the Bharatiya Janata Party (BJP), Prime Minister Narendra Modi, party chief Amit Shah and the party chief ministerial candidate B.S. Yeddyurappa, for calling him and his government corrupt.