Subhashish writes, India Chain will be the country’s largest blockchain network. It will be linked to another existing platform called IndiaStack. IndiaStack is a set of Application Programming Interfaces (APIs) that allow government organisations, businesses, startups and developers to develop applications for presence-less (by using Aadhar), paper-less (Aadhar eKYC, E-sign and digital locker), cash-less (single interface to bank accounts and wallets such as UPI) and consent (to enable people to securely provide consent for the data flow between data providers) service delivery