After opening at 33,371.52, the 30-share index turned choppy to trade 52.46 points, or 0.16 per cent, lower at 33,455.46.
Analysts are of the view that indices retreated from record highs after US officials said the trade truce with China, set to be signed on Wednesday.
Govt moves, including corporate tax cuts, privatisation push, driving investors
After reclaiming the 40,000 mark, the 30-share index pared some gains to trade 128.48 points, or 0.32 per cent, higher at 39,960.32.
The benchmark BSE Sensex ended 0.03 percent higher at 33,157.22, but still posted a record closing high. The index gained 1.8 percent for the week.
The Sensex has so far touched a high of 27,600.71 points and a low of 27,508.43 points during the intra-day trade.