Sensex dips 55 pts

The BSE Sensex and Nifty fell on Wednesday for a fifth session in six, with blue-chips such as Reliance Industries Ltd taking a hit as caution ahead of expiry of June derivatives on Thursday and fears of more violence in Iraq prompted investors to pare positions. The Sensex fell 0.22 per cent, or 55.16 points, to end at 25,313.74, after marking its biggest single day gain since June 6 on Tuesday.