After yesterday's losses, the Bombay Stock Exchange benchmark Sensex today opened almost 70 points higher on fresh buying by funds and retail investors. The 30-share index rose to 20,922 points on the back of recovery in FMCG, metal and auto sector stocks. The index had lost over 152 points in the previous session on emergence of profit-booking. The wide-based National Stock Exchange index Nifty also perked up by more than 18 points to 6,291 points.