 "Kumar Abhishek")
Authentication is a big part of every internet service in use today. There is authentication of documents for a job, authentication of fingerprints for Aadhaar-related services and, most importantly, authentication of identity for just about anything where money transaction is involved.
In 2012, using soundwaves for authentication of payments, probably, had not matured enough, especially in India. But that did not deter Kumar Abhishek, then a business consultant with Infosys, from looking at this technology to facilitate contactless payments. His Bengaluru-based firm, ToneTag, has a team of just about 120 people today. But its solutions are already making waves in
