The Prime Minister, at the time of the appointment:
1. need not necessarily be a member of one of the Houses of Parliament but must become a member of one of the Houses within six months.
2. need not necessarily be a member of one of the Houses of Parliament but must become a member of the Lok Sabha within six months.
3. must be either a nominated or elected member of one of the Houses of Parliament.
4. must be an elected member of only Lok Sabha.