Wearing black clothes, Congress MPs, led by Rahul and Sonia Gandhi, were staging the protest against price rise, the GST hike on essential items and unemployment.
The National Herald corruption case was first brought to the limelight in 2012 when BJP leader and lawyer Subramanian Swamy filed a complaint against some Congress leaders in a Delhi court.
The 75-year old Gandhi has been questioned for over eight hours till now where she has faced close to 65-70 questions.
The Congress leader had reached the ED office around 11 am with her Z+ armed security cover, and accompanied by her children Rahul Gandhi and Priyanka Gandhi Vadra.
'India a police state, Modi a king,' the Wayanad MP said at the Congress protest against Sonia Gandhi's questioning.
The ED probe relates to alleged financial irregularities in the Congress-promoted Young Indian Private Limited, which owns the National Herald newspaper.
The application was filed in a suit by Congress member Pridhwyraj P, who was suspended from the party in 2019. He said the suspension order was in violation of the party's rules and by-laws.
The probe relates to alleged financial irregularities in the Congress-promoted Young Indian Private Limited, which owns the National Herald newspaper.
The 75-year-old Congress president, who was supposed to depose before the agency on Thursday, had written a letter seeking more time on health grounds.