A special team of Vigilance and Anti-Corruption Bureau (VACB), on 3 September, conducted a raid at the house of former excise minister K Babu at Tripunithura, Kochi.
Officials from five units of Vigilance conducted the raids.
According to a report in manoramaonline, an FIR had been filed at Moovattupuzha vigilance court against K Babu for allegedly accumulating wealth disproportionate to his known sources of income.
The VACB also conducted raids at his children's house in Thodupuzha, Kochi and Palarivattom, plus those who are suspected to own benami properties, matrubhumi reported.
More details are awaited.