People of Nepal wants a new constitution coz Nepal is nomore a monarchy country.and they want a new constitution coz Nepal is a democratic country now.and also the people want to live in a democratic country where all the individuals ideas are given importance.and where all the individuals opinions are given importance,they want a new constitution. The old constitution was vested in the hands of king but now it's in the hands of all the people of they need a new constitution. Hope this helps.pls mark as brainliest.....