3904 New Delhi, July 3 The Enforcement Directorate on Friday said it has attached assets of late Congress leader Ahmed Patel's son-in-law, actors Dino Morea and Sanjay Khan and DJ Aqeel in a criminal investigation into a money laundering case linked to an alleged bank fraud. The case involves a Gujarat-based pharmaceutical company called Sterling Biotech group and its absconding main promoter brothers, Nitin Sandesara and Chetan Sandesara. The Enforcement Directorate (ED) has alleged that this is a bigger bank scam in volume than that of the Punjab National Bank (PNB) fraud by fugitive diamantaires Nirav Modi and Mehul Choksi, as it involves fraud to the tune of about Rs 16,000 crore.