Bikram Choudhury: 'I always win'
Bikram Choudhury may be more famous these days for his litigation battles than for the hot yoga industry he helped develop.
The US-based millionaire copyrighted a sequence of 26 poses performed in a hot room in 2002 and has made headlines for trying to enforce his patent rights over former students and rivals.
But his business may be in jeopardy after the US officials ruled earlier this year that health-related yoga cannot be copyrighted.
The BBC's Sharanjit Leyl spoke with the so-called bad boy of yoga in Singapore and asks whether he is worried.