Billionbrains Garage Ventures, Groww’s parent, collected about ₹2,985 crore from over 100 anchor investors as its ₹6,632-crore IPO opened. Anchors included large domestic mutual funds and marquee institutional investors, providing a solid base ahead of retail subscription. The issue mixes a fresh raise with an offer-for-sale from existing backers; bankers say subscription momentum, grey-market premium and perceived margin recovery will shape listing gains. Early retail demand is moderate, and the IPO will test investor appetite for digital-wealth platforms in a busy fintech listing calendar.