From 2009, Choudhury claimed that the series of 26 postures of his yoga practice, Bikram Yoga, was under copyright and could not be taught or presented by anyone whom he had not authorized. Choudhury began making copyright claims on Bikram Yoga in 2012. In 2011 Choudhury started a lawsuit against Yoga to the People, a competing yoga studio founded by a former student and with a location near one of the Bikram Yoga studios in New York City. As a result of that lawsuit, the United States Copyright Office issued a clarification that yoga postures ("asanas") could not be copyrighted, and that Yoga to the People and others could continue to teach the series.