my mom was born in india in the sixties. she didnt get a birth certificate till ~4 years after she was born she immigrated to canada, and her passport/license/

my mom was born in india in the sixties. she didnt get a birth certificate till ~4 years after she was born she immigrated to canada, and her passport/license/citizen hip in canada reflect the date of the birth certificate. wrong month, wrong day, wrong year. funny thing is her cousin was born 3 years after and immigrated to canada, he was born in a major city in india and in a hospital, so had a birth cert at time time of birth. he is older according to canadian govt issued IDs, yet my mom has pictures of herself holding him when he was a new born. we celebrate both of my moms birthdates, one on May 3rd (family recollection in relation to historical event) of her real birthday, and July 8th according to her govt issued IDs