Noida-based merchant fintech platform Pine Labs has raised undisclosed fresh funding from US hedge fund investor Stephen Mandel's Lone Pine Capital at a valuation of over $2 billion. Lone Pine now joins marquee investors like Sequoia, Temasek, Mastercard, Paypal and others, CEO Amrish Rau tweeted. Pine Labs attained unicorn status in January this year, after an investment by Mastercard.