B Capital, a global firm specializing in equity investing in venture and growth-stage startups, led a $90m Series C funding round in Primestack, a company engaged in the business of operating and maintaining cryptocurrency exchange in India under the brand name CoinDCX. Other investors include Polychain, Block.one, Coinbase Global and JCDP. The company, inter alia, intends to use the proceeds of the round to enlarge its footprint and products portfolio.