Mumbai: The BSE benchmark Sensex fell by 193 points in early trade on Thursday as investors booked profits after Wednesday's rally amid worries over slowing domestic growth.

The 30-share Sensex, which closed up 510.13 points in the previous session, fell by 193.41 points, or 1.23 percent, to 15,495.80.

The wide-based National Stock Exchange Nifty Index shed 59.15 points, or 1.26 percent, to 4,634.00.

Brokers said apart from profit-booking by participants, a weakening trend on other Asian bourses also dampened the trading sentiments here, giving fuel to the selling pressure.

IT, metals, auto, capital goods, realty and banking stocks, which recorded significant gains in Wednesday's trade, succumbed to profit-bookming, dragging down the Sensex.

Meanwhile, in the Asia region, Hong Kong's Hang Seng Index was down by 0.68 percent and Japan's Nikkei shed 0.62 percent in morning trade on Thursday.