Council For The Indian School Certificate Examinations [Cisce] — spelling of my father's name and change in surname

Address:

Farrukhabad, Uttar Pradesh

Respected Sir,
It is the problem of my brother's 10th
Mark sheet in which my father's name was incorrect. The correct way of my father's name is "Brijendra Babu Agnihotri" but in Mark sheet of my brother in ICSE in 2012 it was written as " Bijendra Agnihotri" so sir give me a correct way to change this incorrection.I will be thankful if you give me the correct Mark sheet.
Thanking you Anugrah Agnihotri