Ending days of suspense, the Congress on Thursday announced Siddaramaiah as the next chief minister of Karnataka and PCC president D K Shivakumar as his only deputy in the soon-to-formed cabinet.

The two leaders, who were in a tight race for the top post, would take oath along with other ministers on May 20 and leaders of all like-minded parties will be invited for the swearing-in ceremony.

Announcing the decision taken by Congress president Mallikarjun Kharge after hectic parleys ever since the party emerged victorious on May 13, General Secretary (Organisation) K C Venugopal said all leaders, including the top leadership, worked very hard to make Karnataka victory a reality.

"We have decided on Siddaramiah as the chief minister of Karnataka. D K Shivakumar will the only Deputy CM," he said.

Shivakumar will also continue as the party's Karnataka state president till Parliamentary elections are over, he said.

He also said that the swearing-in ceremony would be held on May 20 at 12.30 PM.

At the same press conference, senior party leader Randeep Surjewala said the Congress party is committed to fulfil the five promises that were made during the elections and action would be taken on them in the first meeting of the cabinet.

Asked about the much-talked-about power-sharing formula between Siddaramaiah and Shivakumar, Venugopal said the only power-sharing formula is to share the power with the people of Karnataka. "Ours is a democratic party, we believe in consensus and not in dictatorship," he said on the hectic discussions held over the last few days.

Crediting the people of the state and party leaders in Karnataka for the "spectacular" victory, he said this election was a clearly a fight between the poor and the rich and the poor and middle class have stood with the Congress party.

He also gave credit to Kharge, Sonia Gandhi, Rahul Gandhi and Priyanka Gandhi for the victory in the polls and thanked them for campaigning and guiding the party rank and file.

Venugopal said the Congress victory was initiated from the time of the Bharat Jodo Yatra and thanked Rahul Gandhi for his spirited campaign and guidance.

He said for the last two-three days, the party was trying to bring about a consensus and described both the leaders as "dynamic". Venugopal said Siddaramaiah is a senior-most politician and an able administrator who contributed a lot in this election.

He also said that Shivakumar had electrified the campaign in the state and the two leaders were a "very good combination".

"Both are big assets of the Congress party," he said, adding both were justified in their wish and desire to be chief minister.

Surjewala said both the leaders are capable of being chief minister and the Congress would provide a "transparent, honest and stable government" that would serve as a role model.

"This victory is the joint victory of the Congress organisation. Every worker showed that the Congress can fight this battle together and win," he said.

"The real crown of Congress victory is of 6.5 crore Kannadigas. It is a victory of every Kannadiga, of the democracy and the values of this Constitution and is a loss for those who want to quell democratic traditions under a bulldozer," Surjewala said.