The Sensex at the Bombay Stock Exchange was up by 234 points to 20,804 in late afternoon trade. The rise was attributed to RBI's decision to hike repo rate and ease liquidity curbs by cutting MSF rate by same margin .Earlier, 30-shared index, was up by 65 points in late morning trade. The Nifty,at the National Stock Exchange, gained 74 points to 6,175.