The Bombay Stock Exchange benchmark Sensex lost 90 points in late morning trading on Friday as investors adopted cautious approach due to weekend amid mixed global cues.
The BSE bellwether turned weak after opening firm and was quoted at 15,743.01 at 1030 hours, down 89.54 points from its last close of 15,832.55.
The broader 50-share S&P CNX Nifty of the National Stock Exchange also fell by 4.90 points to 4,766.70 at 1030 hours from its previous close of 4,771.60.
Market players said investors preferred to book profits at the prevailing levels due to week-end considerations as the US government is expected to release its non-farm payrolls report for March.
The market is expected to remain weak during the day, they added.