I've met a few brilliant Indian engineers. I asked one of them why he was different to his peers.

He explained that most of his peers don't enjoy or like what they are doing. They chose to become a developer, because it's a potential path to become a 'manager', which has a higher status in the eyes of their parents, friends and family.

Edit: But we have to be careful not to stereo type. I think a comment made here is pretty good 'Shit code doesn't have nationality'. We just need to understand the motivators for people to become an engineer and if the joy of creating something with code isn't up there and it's mainly about money or a stepping stone to higher status, then code quality will suffer as it seems.