Bankers may remember D K Mittal, who retired as secretary of financial services last month, as the bureaucrat who bombarded them with advisories, but for officials in the finance ministry, he is the one person who gave the Department of Financial Services (DFS) a distinct identity. Bidding farewell to Mittal, one of the officials said everyone now knew what DFS was, unlike a few years ago when people simply called it the “banking division” and its secretary was referred to as the “banking secretary”.