The culprit

Yesterday I thought the culprit was adi but now I feel it is shagun only. Par meet also might be with her at that time. It probably is really an accident. But when mihir got to know abt it he has taken her side. After Raman and ishita get to know ishita probably will withdraw case for adi sake. But later they end up getting adi custody from her as they will threaten to reopen the case.. What do you all think.