President Mohamed Morsi's office announced that elections for the House of Representatives will begin on April 27 and will be completed in four stages.
The announcement comes after the High Constitutional Court deemed five articles of the election law unconstitutional, Ahram Online reported.
The Shura Council will amend the law and experts believe the revisions will take at least 45 days.
The main opposition bloc, the National Salvation Front, met Friday to discuss the announcement, Ahram Online said.
NSF leader Mohamed ElBaradei said on Twitter, "Morsi's decision to go for parliamentary elections amid severe social polarization and the eroding state authority is a recipe for disaster."
But representatives of the conservative al-Gamaa al-Islamiya's Construction and Development Party s said the date chosen was the best for the country.