It depends on parent to parent...they may help her and support her and listen to her, why she was not able to do well, but there are parents who beat their children because they didnt perform well...if neha's parents are nice and supportive then she should tell them and if she is still scared then, she might have gotten good marks it other subjects, she could tell them her maths marks and then quickly the marks of the subject in which she has performed well and if she is just to scared that she might get beaten up then she should wait till her result day and just show them her result.
Niharika and Deeksha