1) if girl is being illegally detained against her wishes she can easily call up police helpline for women and children 103 or police helpline 100 .
2) she can lodge complaint against her parents for criminal intimidation .
3) she can also complain to state commission for women
4) you can file habeas corpus petition in HC to direct police to produce the girl if she is being illegally detained
5)The Constitution provides that on a writ of habeas corpus, filed by any person, a High Court concerned may direct that “the person in custody be brought before the Court so that it maybe satisfied that he is not being held in custody without lawful authority or in an unlawful manner.”