The Sensex at the Bombay Stock Exchange fell by 146 points to 21,110 in late afternoon deals today.The fall was attributed to persistent selling pressure in auto, capital goods, banking, refinery and banking sectors on the back of lower global cues. Earlier, the BSE-30 share index, declined by 111 points in late morning trade.The National Stock Exchange index Nifty also fell by 44 points to 6,289.