Hello,
Yes you may tell this thing in writing to the police station and may tell them the fact so that they take the same on record.
Also if you want a concrete thing to happen then you may file a writ of habeas corpus in high court saying that your daughter is in illegal custody of that person, whereafter notice will be issued to that boy and after they appear in the court undertaking will be given by them which will be taken on record.
Regards