Despite a sluggish property market, property baron's DLF saw its shares rise on news he plans to sell his 40% stake in valuable rental arm DLF Cyber City Developers to institutional investors and use the proceeds to pare down DLF's $3.3 billion debt. Blackstone Group, Abu Dhabi Investment Authority and GIC of Singapore are believed to be among the bidders. In April DLF opened its 2-millionsquare-foot Mall of India near Delhi.