In Tamilnadu, Enforcement Directorate conducted raids at the houses and offices of the State Higher Education Minister Dr. Ponmudi and his son and Lok Sabha MP Gautham Sigamani. The raids were conducted at more than seven places in Chennai and Villupuram based on a complaint on illegal foreign transactions seven years back. 

The money laundering case against Ponmudy is linked to alleged irregularities when he was the state mining minister between 2007 and 2011. There were allegations against him of violation of quarry licence conditions leading to loss of about 28 crore rupees to the exchequer.