The BSE benchmark Sensex today fell over 84 points in early trade today as funds and investors preferred to trim their positions ahead of RBI credit policy meeting. The 30-share barometer declined by 84.12 points to 19,651.65 with stocks of interest-sensitive such as banking, auto and realty sectors leading the fall. The Sensex had gained 449.23 points in the previous three sessions on expectations of rate cut.The wide-based National Stock Exchange index Nifty fell by 18 points to 5,982.In the Asian region, Hong Kong's Hang Seng index gained 0.70 per cent, Japan's market is closed today. The US Dow Jones Industrial Average ended 0.89 per cent higher yesterday.