Mumbai: The key Indian equity indices on Monday morning tanked on global sell-off over US Federal Reserve rate concern.

The 30-scrip Sensitive Index (Sensex), was trading 522.91 points or 1.82 per cent down during the morning session.

The wider 51-scrip Nifty of the National Stock Exchange (NSE) was also trading 134.50 points or 1.52 per cent lower at 8,732.20 points.

The Sensex of the BSE, which opened at 28,481.09 points, was trading at 28,274.34 points (at 9.16 a.m.) in the early session, lower 522.91 points or 1.82 per cent from the previous day’s close at 28,797.25 points.

The Sensex touched a high of 28,481.11 points and a low of 28,251.31 points in the trade so far.