According to sources, Koshal will take a temporary break from investment banking.
Koshal could not be contacted for comments.
Prior to joining Daiwa, Koshal was head of the infrastructure practice at Enam Securities.
As an investment banker, he has also worked with Taib Bank and India Securities Limited.
He was part of Essar Power Limited as vice-president (finance) and also headed banking relationships for Essar Group.
Koshal has about three decades experience in commercial banking, investment banking and corporate finance.
During his stint at Daiwa, he was involved with KEC International's $100-million acquisition of SAE Towers.
Over the past two years, India's i-banking sector has seen a heady churn at the senior level, mainly in the area of mergers and acquisitions.
In 2011, Jaideep Goswami, managing director and head of equities at Daiwa Capital Markets, had quit to join ICICI Securities.
Another Japanese firm, Nomura, also saw the exits of senior bankers in India in 2011.
Nipun Goel, Nomura Holdings' head of India investment banking, and two other senior investment bankers -- Indraneil Borkakoty, head of India equity capital markets business, and senior M&A advisor Shubham Majumder --
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