MOSCOW, Jan 14 (Reuters) - Sergei Shvetsov, the Bank of Russia"s first deputy chairman, will leave his post on March 21, the central bank said on Friday. Shvetsov may become head of the supervisory board of MOEX Group (MOEX.MM), which runs Russia"s largest exchange, the group said in a statement, subject to committee and shareholder approval. Shvetsov has worked for the central bank since 2001, his second stint with the regulator, and was heavily involved in the development of Russia"s financial market, playing a key role in the merger of the central bank and Federal Service for Financial Markets in 2013. He was an instrumental figure in leading Russia out of financial crises in 2007-08 and 2014-15, and has led the regulator"s efforts to improve financial literacy, establishing trading rules and protecting investors" rights and interests. Shvetsov declined a Reuters request to comment on his departure. Yuri Isaev, the head of Russia"s Deposit Insurance Agency (DIA), will join the central bank on Jan. 26 to supervise financial monitoring and other departments, the bank said.