I need advice from those who have gone through the process of getting the NRN Citizenship in Nepal. The list of documents required to obtain an NRN Citizenship, among the others, says 'Nepali passport'. I had a Nepali passport but it is misplaced and I can not find it now. My Nepali passport was not used for a long time and had been expired The passport was issued in New York. Is surrendering of the Nepali passport mandatory or optional? If it is mandatory, what is the process of getting a 'lost passport' letter? Thank you in advance for your helpful input and your time.