Let me explain that more. Based on some projections(http://articles.economictimes.indiatimes.com/2011-11-12/news/30391268_1_largest-economy-demographic-dividend

Let me explain that more. Based on some projections(http://articles.economictimes.indiatimes.com/2011-11-12/news/30391268_1_largest-economy-demographic-dividend-indian-economy http://articles.economictimes.indiatimes.com/2011-11-12/news...) India will have spending power matching present best. My hypothesis is that as there is more liquidity to go around, families won't need the economic pressure to stay nuclear close. This would lead to break down in credit discipline and thus allowing the emergence of credit cards. Right now and for two generations this does not feasible(i.e by and after 2050). Well, based on one of the many variables atleast, though a major variable.