89. Vacation of seat: The seat of a member of the Federal Parliament shall become vacant in any of the following circumstances:
(a) if he or she tenders resignation in writing before the Speaker or Chairperson,
(b) if he or she is no longer qualified or ceases to possess the qualification under Article 87,
(c) if the term of the House of Representatives or the term of office of the member of the National Assembly expires,
(d) if he or she absents himself or herself from ten consecutive meetings, without giving notice to the concerned House,
(e) if the political party of which he or she was a member when elected provides a notification in accordance with the Federal law that he or she has defected from the party,
(f) if he or she dies.