The Bombay Stock Exchange benchmark Sensex opened 73 points lower on profit booking by funds in line with weak global cues.
The 30-share barometer fell by 73.32 points to 18.093.71 points in the first five minutes of trading. The wide-based National stock Exchange Nifty index declined by 5.80 points to 5,446.30 points. The selling pressure following a weak opening in the Asian region. Hong Kong's Hang Seng index traded lower by 0.26 per cent while Japan's Nikkei was down 1.18 per cent in early trade.