Spelling of mother's name is different in previous passport

My parents made my passport on 2013 which has not been used even once. At that time the passport official said once you are an adult it will be expired and you have to apply for fresh passport. So I applied for fresh passport. Now they are asking for the old passport as well. The error is, my parents are all hindi medium graduates they filled every paper in hindi and when the govt officials converted it to english, they wrote different spellings for the same name. But in my all official documents which includes, 10th certificate and 12th certificate the name is "HENA" but in my previous passport the spelling is HINA. Also in the all the other official documents of my mother the spellings are different its HEENA, HINA and like that. So my main question is now I am an adult, I have passed my 10th and 12th can I use my 10th and 12th certificates as an official document to correct my mothers name in my new passport. Do I need anything else? Other than this my passport is already in last section of verification.