Rajaratnam’s brother implicated

Raj Rajaratnam’s younger brother was indicted on charges of conspiring in the insider-trading scheme for which the founder of the Galleon Group hedge fund was convicted nearly two years ago, US prosecutors announced yesterday. Prosecutors said Rengan Rajaratnam, 42, conspired with his older brother to trade on non-public information concerning Clearwire Corp and Advanced Micro Devices in 2008.