Prosus, one of Byju’s largest investors, on Monday said its once-$2.1 billion worth stake in the Indian edtech startup is now worth nothing, but it is still hopeful that the formerly most-valuable Indian startup can be salvaged. The largest external investor in Byju’s with a 9.6% stake, Prosus said in its quarterly report that its stake in the startup is now worth zero “due to the significant decrease in value for equity investors.” Prosus Group CIO, Erwin Tu, said on an earnings call that the f...