Mumbai: Equity benchmarks logged their biggest drop in 20 days with Sensex slipping below 26,000 mark and the Nifty ending at 7,721.30 on caution due to expiry of monthly derivative contracts and fund outflows after the US Fed’s move to trim its bond buying programme hit sentiment. Banking, power, consumer durable and capital goods stocks attracted profit-selling. ICICI Bank and Maruti Suzuki shares dropped even after in-line quarterly results, said brokers. The BSE 30-share Sensex ended at 25,894.97, a fall of 192.45 points or 0.74 per cent. This is its biggest fall since July 11 when it slipped 348.40 points. Losses in HDFC, ITC, Tata Motors, M&M, TCS, HUL, Wipro, Maruti Suzuki and BHEL weighed on indices.