The case is related to the loan to Videocon, and the business alliance between its promoter Venugopal Dhoot and her husband Deepak Kochhar.

Venugopal Dhoot allegedly invested crores of rupees in NuPower Renewables, a company founded by Ms Kochhar's husband, months after the Videocon group was granted loan by the bank.

It was part of a Rs. 40,000 crore loan which Videocon got from a consortium of 20 banks led by the State Bank of India.

The Rs 3,250 crore loan has become a non-performing asset for the ICICI Bank.

The case exploded last year when a whistleblower alleged that Ms Kochhar's husband Deepak Kochhar and her family members benefited from the dealings.

Initially, Chanda Kochhar enjoyed full backing of the board but lost it as the list of allegations kept growing with more names like an alleged Essar group shell company of the Ruias also emerging among those with whom the Kochhar family had a relationship.

These allegations led to probes by multiple agencies, including the CBI, ED and SFIO, and also questioning of the Kochhar family members, PTI reported.

The ICICI bank last year launched an independent probe by retired judge BN Srikrishna and Ms Kochhar. Chanda Kochhar went on indefinite leave pending the probe. This led to Sandeep Bakhshi being made the chief operating officer to oversee the day-to-day operations.