Mumbai, March 24 -- India's largest private sector lender HDFC Bank has appointed at least two law firms Wadia Ghandy & Co, and Trilegal to conduct a review of the circumstances leading to former chairman Atanu Chakraborty's sudden exit last week, said two people aware of the matter.

These law firms have been tasked with aiding the bank's internal legal counsels to sift through pages of minutes of past board meetings to see if Chakraborty had made any serious observations, according to one of the two people cited above. The bank's board and the management maintained they had no inkling of Chakraborty's exit, and he did not specify what he was referring to as part of his ethical concerns despite being repeatedly asked.

Earlier on Tuesday...