Benchmark equity indices started the trade on a positive note on Monday but later gave up all early gains to trade lower.
Both the indices failed to carry forward the positive momentum and were trading lower later. The Sensex quoted 177.54 points lower at 71,821.10 while the Nifty fell 53.25 points to trade at 21,653.85.
At 10:17 am, Sensex was trading 48.22 points down at 71,977.93, whereas Nifty waas trading 14.45 points lower at 21,696.35.
Among the Sensex firms, Tata Steel, Bharti Airtel, HCL Technologies, Reliance Industries, Sun Pharma and Titan were the biggest gainers.
Hindustan Unilever, Bajaj Finance, Bajaj Finserv, ITC, IndusInd Bank and NTPC were among the laggards.