The government's stake in public sector banks should come down significantly, in order to provide banks with more capital, Rajneesh Karnatak, managing director and chief executive officer of Bank of India, said at a conference organised by the National Stock Exchange of India on Friday. With credit growth remaining strong, banks are going to need more and more capital, which they can get if the government brings down its shareholding and dilutes the equity capital in state-owned banks, he said.