Extending gains to a second straight session, domestic stock markets started Friday's session on a higher note tracking advances in Asian peers. The S&P BSE Sensex index rose as much as 284.51 points in early trade to 37,611.87, and the broader NSE Nifty benchmark climbed to 11,121.85, up 89.4 points from the previous close. Buying across most sectors, led by banking and energy shares, supported the markets. Friday's gains came a day after reports that the government is likely to exempt foreign portfolio investors from higher taxes triggered a surge in the markets.