Answer:
someone who has made significant positive contributions to the growth and development of society
once a person is named as a National Hero he or she will be a National Hero forever.
national hero are those who have a concept of nation and thereafter aspire and struggle for the nation's freedom
Heroes are those who make the nation's constitution and laws.
there are some Qualities to become, and ofcourse you must have faith in you, what you do as socially
go for it!!