The benchmark Sensex, on Monday, achieved the psychologically important milestone 20K for the first time ever but closed at 19,977.67, registering the third biggest gain of 734.50 points, riding high on strong global cues as well as faster economic growth.

The bull charge became intensive ahead of the RBI’s mid-term review of annual policy on Tuesday and the US Federal Reserve’s meeting on October 31, with strong optimism about rate cuts.

Extending its rally to sixth straight session, the Bombay Stock Exchange (BSE) barometer climbed new heights to set a new all-time trading high of 20,024.87 and ended at a new closing peak of 19,977.67, a 3.82 per cent rise over Friday’s close of 19,243.17. The sensex has gained 2,417.69 points or 13.77 per cent in 6 days, making a record of sorts. The broader S&P CNX Nifty of  National Stock Exchange (NSE) also hit a new peak of 5,922.50 before ending at 5,905.90 from Friday’s close of 5,702.30, a net gain of 203.60 points or 3.57 per cent.