Kochi: The Enforcement Directorate has attached properties worth over Rs 8.8 crore of a former IAS officer of Kerala under the anti-money laundering law in connection with an alleged disproportionate assets case. The central probe agency said it has issued a provisional order under the Prevention of Money Laundering Act (PMLA) against T O Sooraj and has attached 13 immovable properties, four vehicles and cash worth Rs 23 lakh. The total value of the properties attached is Rs 8.80 crore, the agency said in a statement. The Enforcement Directorate (ED) filed a criminal PMLA case against Sooraj based on a 2014 disproportionate assets case registered by Kerala Vigilance and Anti-Corruption Bureau (VACB).