The Bombay Stock Exchange fell by over 102 points in opening trade on Friday. The 30-share barometer Sensex, which had lost over 77 points in the previous two sessions, fell to 9,880 in the first few minutes of trade, with metal, technology, banking and auto sector stocks remaining under pressure. Similarly, the wide-based National Stock Exchange Nifty index declined by nearly 40 points points to 5,940. Brokers said, continued selling by funds and retail investors keen to book profits ahead of the end of the calendar year led the Sensex's fall. In addition, the absence of any positive cues at home or overseas also vitiated the trading sentiment. They said, inflation, which rose to a six-week high of 12.13 per cent for the week ending December 11, also cast its shadow on the market.