The credit card business is just as expensive as it is lucrative. The new RBI rules for credit and debit cards have sparked a debate around whether NBFCs will finally be allowed to issue credit cards. The rules are much the same, the permission caveat still remains. So what's different this time around? And do NBFCs want to spend precious money on setting up infrastructure rails on credit cards? More importantly, are credit cards on their way out? Our CEO Rajat has tried answering these questions in this week's edition of Big Picture. Check it out?