With digital adoption fast gaining currency, India is likely to see retail digital payments double to USD 7 trillion by 2030 from current levels, a study by Kearney and Amazon Pay said. In the report 'How Urban India Pays', Kearney-Amazon Pay said strong adoption of digital payments in online purchases has potentially led to a permanent shift in consumer behaviours, fueling offline adoption as well. While 90 per cent of the respondents of the survey preferred digital payments when making online purchases, affluent consumers lead the way with the highest Degree of Digital Payment Usage (DDPU), tending to use various modes of digital payment for 80 per cent of their transactions. "Millennials and Gen X are leading in the adoption of all types of digital payment instruments," it said. "Men and women both use digital payments in about 72 per cent of their transactions, indicating gender parity. The research was based on an online survey of over 6,000 consumers along with more than 1,00