Mumbai, Dec. 8 -- The domestic equity indices slipped on Monday as traders cashed out of midcaps and blue chips, sparking a broad selloff. Foreign investors quickened their retreat ahead of the US Federal Reserve's policy decision later this week, pulling the Nifty below 26,000. All the sectoral indices on the NSE ended in the red, with Nifty PSU Bank index leading the decline. Sentiment weakened as traders braced for a potentially hawkish Fed signal, the rupee flirted with lifetime lows on persistent dollar demand, and conflicting cues from ongoing India-US trade negotiations kept investors uneasy. Rising Japanese bond yields added another jolt by threatening to trigger an unwinding of yen carry trades, tightening liquidity and stirring ...