The family is unhappy over the Juvenile Justice Board's decision on the sixth accused, but have full faith that despite him being ruled as a minor, he would also get sternest of punishments, he said.
The father of the girl said he was seeking advice of legal experts on the decision of the Juvenile Justice Board but was yet to decide whether to go to court in this connection.
The family would try to ensure that the court takes this act as an exception and pronounce sternest of punishments to the accused.
Her father said he found himself helpless before the law.
The Juvenile Justice Board had said the sixth accused, described as the most brutal by the Delhi Police in its charge sheet, was a "minor" and this could enable him to walk free by June 4 this year when he attains the age of 18 years.
The brother of the deceased said just as the central and Delhi governments initiated steps on rape cases following mass protests and agitations, there should also be efforts for awarding capital punishment for minor offenders in rape cases.
He also took exception to media running news of his sister's love affair.