Mumbai, Oct. 8 -- Key benchmark indices extended their losses in afternoon trade, with sentiment remaining fragile amid weak global cues and caution following the Reserve Bank of India's (RBI) repo rate hike. Rising US Treasury yields and firm crude oil prices also continued to weigh on sentiment. Broader indices underperformed the frontline benchmarks, with selling pressure seen across sectors. In contrast, Nifty IT index traded higher.

At 13:17 IST, the S&P BSE Sensex declined 1,001.63 points, or 1.38%, to 71,637.07, while the Nifty 50 index fell 341.15 points, or 1.51%, to 22,261.90.

The broader market underperformed the frontline indices, with the Nifty MidCap 150 index declining 1.98% and the Nifty SmallCap 250 index falling 2.18%....