Question: who is playing the role of roshni in yeh hai mohabbatein
[{'answer': 'Vidisha Srivastava', 'provenance': [{'wikipedia_id': '41296074', 'title': 'Yeh Hai Mohabbatein', 'start_paragraph_id': 46, 'start_character': 12, 'end_paragraph_id': 46, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Cast.:Recurring.\n'}]}]