need to renew Nepalese passport

Nepal citizenship certificates wrote:In Nepal, a Citizenship certificate (the legal paper denoting citizenship) is issued only to persons who have attained the age of sixteen. A person who is more than 16 years old and who wants to acquire citizenship certificate on the basis of birth or descent is required to apply for the same by including with the application the Nepali citizenship certificate of one's father, mother or the close relative in his lineage, one's birth certificate, the certificate attesting one's lineage, the recommendation of the Village Development Committee or Municipality concerned, the land-ownership certificate in one's name, father's name or mother's name, or the receipt of the house tax.