The life of National Assembly is divided into sessions. It must meet for at least 130 days and there must be at least three sessions in a year. A session of the National Assembly is summoned by the President of Pakistan under Article 54(1) of the Constitution. In the summoning order the President gives the date, time and place (which is usually the Parliament House), for the National Assembly to meet. The date and time for the summoning of the National Assembly is immediately announced over Radio and Television. Generally, a copy of the summon is also sent to the Members at their home address. The National Assembly can also be summoned by the Speaker of National Assembly on a request made by at least 25 percent of National Assembly Members. If the National Assembly is so requisitioned, it must be summoned within 14 days