BYJU'S announced on Friday it has raised $800 million in a new funding round as the edtech startup prepares to file for an IPO. Its Co-founder and CEO Byju Raveendran has personally invested $400 million in the current round, which saw participation from Sumeru Ventures, Vitruvian Partners and BlackRock. BYJU'S is now valued at about $22 billion, as per reports.