The Golkar Party and United Development Party (PPP) have reached an agreement to coalesce in the presidential election in July this year, Golkar Party leader Jusuf Kalla said, Antara state news agency reported.

"Although the coalition is still to be discussed further after the legislative election, we have decided to do it to win 51 percent of the seats in the parliament," Kalla said after a closed-door meeting with PPP Chairman Suryadharma Ali here on Saturday.

Kalla said that based on present calculations, Golkar and PPP would be able to grab 51 seats in the parliament, and even more than that in the future through a coalition with two to four other political parties.

"In reality, the coalition with other parties is to be made in the future, but with PPP it will go ahead," Jusuf Kalla said, adding that the political cooperation or coalition was intended for the betterment of state and national interest.

On the occasion, PPP chairman Suryadharma Ali said ideally in the future the coalition should gain 51 percent of seats in parliament. He said both PPP and Golkar realized that the state management could not be done by a single party.

"It is impossible for Golkar alone to manage the country, and if PPP wins the election, it will impossible as well for the party to go it over alone," Suryadharma said.

During the almost two-hour meeting, the two political parties agreed to build good relationships and political cooperation, to conduct and guard free, fair, honest, and successful general elections, to make the Susilo Bambang Yudhoyono-Jusuf Kalla government a success, to build democracy and political parties ability as the pillars of democracy, to develop the existing multi-party system, and to build togetherness with other parties in the state's and nation's best interest.