Mumbai, November 21: The Securities and Exchange Board of India (Sebi) board approved amendment to the Sebi (Portfolio Managers) Regulations, a move, experts said, will enhance the eligibility criteria and define the role of principal officer clearly. The board of the market regulator also decided to raise the minimum investment amount of clients for Portfolio Management Schemes to Rs 50 lakh from existing Rs 25 lakh. With this move, Sebi wants to keep retail investors away from portfolio management schemes (PMS). Sebi Chairman Ajay Tyagi said after the board meeting that the market regulator has decided to increase the networth requirement of portfolio managers to Rs 5 crore from existing Rs 2 crore. He further said the existing portfolio managers will have to meet the enhanced requirement within 36 months.