AI startup Parallel Web Systems, founded by former Twitter CEO Parag Agrawal, has raised $100 million (₹948 crore) led by Sequoia Capital, The Wall Street Journal reported. Existing investors Kleiner Perkins, Index Ventures and Khosla Ventures also participated. The round values the company at about $2 billion, up from $740 million in its $100-million fundraise last November.