Sensex pares morning gains to slip in red, Nifty tests 9,600

The benchmark indices extended gains for the fourth straight session on Tuesday tracking positive trend seen in Asian markets after strong gains in US and European markets. 

At 10:05 am, the S&P BSE Sensex was trading at 31,300, up 79 points, while the broader Nifty50 was ruling at 9,644, up 29 points.

In the broader market, the S&P BSE Midcap and the S&P BSE Smallcap indices added 0.4% each. 

"Due to Monday's price activity, the Nifty has once again managed to regain the 9,600 mark. In fact, it has crossed this hurdle with an ease, which was slightly unexpected for