Food chain Chaayos has raised $21.5 Mn in a mix of equity and debt in its Series B funding round. Sunshine Teahouse, which runs Chaayos, secured $18.5 Mn in equity funding from San Francisco-based investment firm Think Investments and other investors, and it also received $3 Mn in the form of venture debt from InnoVen Capital. Existing investors including Tiger Global Management, SAIF Partners, Integrated Capital, and former WhatsApp business head Neeraj Arora also invested in the Series B round.