Ans- Citizenship can be lost in 3 ways. They are:-
By Renunciation- An individual can voluntarily give up his or her citizenship of a country with due formalities i.e., by submission of a declaration form to the concerned office.
By Termination- If a person holds citizenship of two countries together, then he/she will automatically lose the citizenship of the former country.
By Deprivation- If a person has acquired citizenship by any unlawful means or is involved in any anti-national activity, he or she will lose the citizenship of the country.