India, Oct. 22 -- Equity benchmark indices extended their losses for a second straight session on Wednesday, with the Sensex dropping 143 points as selling in power, banking and financial stocks and elevated crude oil prices weighed on investor sentiment.

Besides, rising US bond yields and persistent FII selling also dampened the trading scenario.

The 30-share BSE Sensex declined 143.21 points, or 0.19 per cent, to close at 73,709.69. The index opened in the green and surged 829.29 points, or 1.12 per cent, to hit an intraday high of 74,682.19, before paring early gains to hit a low of 73,229.45.

The 50-share NSE Nifty dropped 77.60 points, or 0.34 per cent, to end at 22,811.35. It had climbed to a high of 23,120.90 in early trade befo...