Sentiment also took a hit as key goods and services tax (GST) bill could not be passed in the Monsoon Session of Parliament, which ended last week.
Sensex had gained by 550.05 points in last two sessions.
Banking shares were in the limelight as the government announced a slew of measures to revive the fortunes of the public sector lenders.
On BSE, Bank of Baroda climbed 15.15 per cent, Canara Bank surged 13.42 per cent, Bank of India jumped 8.72 per cent, Punjab National Bank gained 4.09 per cent and SBI rose 3.95 per cent.
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In the forex market, rupee posted surprise slide today as it depreciated by 37 paise to nearly two-year lows of 65.37 (intra-day) against the dollar.
The BSE Sensex after rising to 28,095.97 in opening trade, slipped into the negatively zone as selling pressure emerged and dipped below the 28,000-mark to touch a low of 27,739.13 but on low-level buying it recovered partially to close 189.04 points or 0.67 per cent down at 27,878.27.
Among major laggards, stocks of drug maker, Cipla plunged 4.95 per cent despite posting better-than-estimated earnings.
Other losers were Hindalco, ONGC, Hero MotoCorp, Vedanta, Axis Bank, Dr Reddy's, RIL, M&M, HDFC, L&T, Bajaj Auto, HDFC Bank, NTPC, Maruti Suzuki, ITC, Infosys and TCS.
Sectorwise, BSE realty index suffered the most by falling 1.28 per cent, followed by capital goods by 0.99 per cent, oil & Gas (0.97 pc), auto (0.64 pc), power (0.50 pc), FMCG (0.35 pc) and IT index (0.33 pc).