Prithviraj’s mother Mallika has responded to the Income Tax (IT) notices served to director Prithviraj Sukumaran, which were issued seeking details of his remuneration.She stated that her son had done nothing wrong and that they were not afraid of any investigation.She also mentioned that when controversy arose earlier regarding a film, it deeply moved her when superstar Mammootty stood by Prithviraj in support. She expressed her heartfelt thanks to Mammootty for backing her son.