JD(S) leader HD Kumaraswamy will be administered the oath of office as Chief Minister of Karnataka tomorrow on the grand steps of the Vidhana Soudha, the state secretariat. <br />''<br />''Congress President Rahul Gandhi and UPA Chairperson Sonia Gandhi will be present on this occasion. Chief Ministers of non-BJP states and heads of regional parties have accepted the invitation to attend the swearing in ceremony.