Zepto has raised $665 million at a $3.6 billion valuation in a oversubscribed round – just nine months after the company raised $235 million at a $1.4 billion valuation. Avenir, Lightspeed and Avra (Anu Hariharan’s new fund) joined the company’s cap table as new investors, among others. The existing investors Glade Brook, Nexus and StepStone co-led the round with Goodwater …