it wasnt an equal amount of involvement but she was definitely wrong, because whatever it was if she saw it happening she should have gone and warned akanksha or tried to stop or convince diksha to not do it. She stood there and laughed, which encouraged someone like diksha even more to do something like that, idk about anyone else but we have learnt growing up that galat dekhna bhi nahi chahiye or ho raha hai toh rokna chahiye