Bengaluru, Nov. 28 -- The tussle in Karnataka amid speculation of a power-sharing formula involving Chief Minister Siddaramaiah and his deputy DK Shivakumar has caused concern among Congress leaders in the state and is likely to be discussed by the central leaders after the party's strategy group meeting ahead of the winter session of Parliament on November 30.

Congress leaders Sonia Gandhi, Mallikarjun Kharge and Rahul Gandhi will be present at the strategy group meeting.

Amid the tussle, Siddaramaiah said there is no change in his stance. He invited Shivakumar for a breakfast meeting.

"The high command has called both of us, so I have invited him (DK Shivakumar) for breakfast, and we will talk there. As I said earlier, I will accept ...