As HD Kumaraswamy preps for his swearing-in ceremony to be held in Bengaluru's sprawling Kanteerava stadium on Wednesday next, the occasion is going to serve more than one purpose. It will also serve as a show of unity for opposition leaders and possibly even share notes. Mr Kumaraswamy said he was going to personally invite Rahul Gandhi, the Congress president to the ceremony as well as many of the country's regional heavyweights.