The attached assets include immovable and movable properties held in the name of Maoists like Binod Kumar Ganjhu, Pradeep Ram and their family members, the central probe agency said in a statement.
The investigating officer of the case is expected to record her statement under the PMLA even as she will be confronted with the statements made by Shivakumar and others, they said.
The Enforcement Directorate has attached assets worth `277.97 crore owned by eBIZ.com Pvt Ltd in connection with multilevel marketing fraud.
The federal probe agency said it raided six locations, two each in Kolkata, Mumbai and Patna, after it booked Singh under the Prevention of Money Laundering Act.
The apex court has asked Chidambaram to approach the trial court for regular bail.
Sporadic protests were reported in places, including Channapattanna and Ramanagara, since morning, while schools and colleges remained shut in the district.
Shivakumar's lawyers Abhishek Manu Singhvi and Dayan Krishnan opposed the ED's plea for custodial interrogation saying that he had joined the probe and never absconded.
The central agency had in September last year registered a money laundering case against Shivakumar, Haumanthaiah, an employee at Karnataka Bhavan in New Delhi, and others.
The federal agency issued a provisional order for attachment for a total of 14 plots allocated in Panchkula under the Prevention of Money Laundering Act.
Senior advocate Kapil Sibal, representing Chidambaram, said they never argued that they wanted access to the material collected by the ED.
They said the raids were conducted after the filing of a case under the Prevention of Money Laundering Act (PMLA).
According to sources, the property was jointly owned by Karti and his mother Nalini Chidambaram.
It was Babu, on whose complaint the CBI had registered a criminal FIR on charges of corruption against its former special director Rakesh Asthana.
Hooda was grilled in Chandigarh and his statement was recorded under the Prevention of Money Laundering Act (PMLA) in the case.
It is reported that the officer had purchased properties in Vijayawada and its surroundings with the ill-gotten money.