The corruption case in question is rooted in a search carried out by the Income Tax Department in 2017.
During a search by the Income Tax Department on August 2, 2017, at various locations including Delhi, ₹8.59 crores was found. Out of that, ₹41 lakh rupees was found at a place belonging to Shivakumar. This was followed by a case being registered by the income tax department officials.
After this, the Enforcement Directorate (ED) filed a case against Shivakumar under the Prevention of Money Laundering Act.
Based on this, Shivakumar was arrested on September 3, 2019.
Later, on September 9, 2019, relying on the ED’s letter, the State government allowed the CBI to conduct an investigation.
Source: Barandbench