"The real battle right now is writing Egypt's new constitution," ElBaradei who shied away from the tussle said as he demanded that the polls be cancelled.
The Egyptian activist said "the legitimacy of one of the candidates is highly doubtful," apparently referring to former Prime Minister Ahmed Shafiq.
He also said there are doubts about the legitimacy of Parliament, and added that he is heading to Tahrir Square to support the cause.
ElBaradei said that he would hold a meeting with the revolutionary youth, claiming that, "The revolution did not achieve any of its goals, including bread, freedom and social justice."
A number of political parties said on Sunday that the presidential election 'under the rule of the military council' are invalid.
The meeting agreed on three demands -- the cancellation of the presidential election, the immediate transfer of power from the military council to a civilian presidential council, and holding special "revolutionary tribunals" for the defendants in the Mubarak case.