Raja Harischandra

You are right - it is a simple majority to abolish the monarchy. I stand corrected. Thanks for pointing it out.

159. Provisions Regarding the King:

(1) No power regarding the governance
of the country shall be vested in the king.

(2) The Prime Minister shall perform all works pertaining to the
governance and operation of the country.

(3) Notwithstanding anything contained elsewhere in this
Constitution, the simple majority in the first meeting of the Constitutional
Assembly shall take decision about whether or not to give continuation to
the monarchy.

(4) The property of late King Birendra, late Queen Aishwarya and
other members of their family shall be brought under the control of the
Government of Nepal, and a Trust shall be established to use the property
for the benefit of the nation.

(5) All the property acquired by King Gyanendra in the capacity of
the King (for instance: the palaces in different parts of the country, forests
and national parks, heritage sites of historical and anthropological
importance etc.) shall be nationalized.