Catamaran, the family office of Infosys founder Narayana Murthy, is targeting 15 per cent returns on its portfolio investments per annum as it shifts focus from early-stage investments to growth and late-stage bets. This would double the firm's assets under management (AUM) from the current $1 billion to $2 billion over the next five years. 'For direct investments, we are focusing on growth-stage investments and very selectively on early stage,' Deepak Padaki, president, Catamaran, told Business Standard. '(This is) primarily because the early-stage space in India, in the last three-four years...