After scaling its fresh all-time high, the Nifty ended marginally lower at 19,993.2 on Tuesday on profit booking by investors.
The 50-share index opened at a record high of 20,110.15 but pared its gains to close lower by 3.15 points or 0.02 per cent. It had breached the 20,000-mark for the first time during the intraday trades on September 11.