Arappor Iyakkam, an anti-corruption organization, has petitioned the Madras High Court to direct the Directorate of Vigilance and Anti Corruption (DVAC) to investigate an alleged scam in the procurement of distribution transformers during the tenure of former Electricity Minister V. Senthilbalaji. The organization claims collusive bidding and cartelization in tenders between 2021 and 2023 resulted in a ₹397 crore loss to the public exchequer. Arappor Iyakkam seeks a High Court-monitored probe by a Special Investigation Team (SIT) based on its findings.