[ashwin_krish]

The reason they stand out most is their consistency over the decade. The consistency they have as they expand. India is a lot different scenario than the rest of the world. Tackling innovation alone won't get you far. There are so many factors starting from purchase of license, regular bribing the police, rogues etc etc. Besides, this is a story of an uneducated person raising this big a company. Gathering customers without use of a computer or internet. I believe this is an important lesson for all startups for this reason. It shows going beating the usual, taking the untrodden path can take you miles.

[guard-of-terra]

Most of those points stand for other fast food or supermarket chains as well. And the cases of single place becoming a chain usually feature owner without a formal business education.