The ED is recording statements of the duo in connection with the investigation into alleged irregularities and corrupt practices in the sanction of Rs 1,875 crore loan disbursed by ICICI Bank to Videocon Group in 2009 and 2011.
On Tuesday, Chanda and Deepak were grilled were over eight hours by the ED in connection with the aforesaid case.
In March, the ED had conducted raids at locations linked to the Kochhars, following which the duo was called for questioning to the probe agency's Mumbai office.
It had also questioned Deepak's brother Rajiv Kochhar from April 30 to May 2, stating that he withheld crucial information pertaining to the case. Videocon Group promoter Venugopal Dhoot was also questioned in connection with the case.