Source: Benchmark indices have extended the morning gains with Nifty up 35 points at 11,832 while the Sensex gained 117 points and is trading at 39,553 level. Realty stocks are buzzing in this afternoon session led by DLF which jumped close to 4 percent followed by Indiabulls Real Estate, Oberoi Realty, Unitech and Sobha. Pharma stocks continue to trade