The Karnataka cliffhanger just got a fresh twist with state party chief DK Shivakumar, one of the two contenders for the Chief Minister's post, cancelling his trip to Delhi and sending his "best wishes" to his rival. The 61-year-old, who was expected to reach this evening after summons from the party's Central leadership, in a sudden turnaround, said he would not. "Sonia Gandhi told me, 'I have confidence in you that you will deliver Karnataka'. I am sitting here, doing my regular responsibility. You should have the basic courtesy, a bit of gratitude. They should have the courtesy to acknowledge who is behind the win," he told NDTV in an exclusive interview.