Many successful inmates go on to become yoga instructors
Prisoners in the Indian state of Madhya Pradesh are being freed early if they complete yoga courses.
For every three months spent practising posture, balance and breathing the inmates can cut their jail time by 15 days.
The authorities say the lessons help to improve the prisoners' self-control and reduce aggression.
Some 4,000 inmates across the state are benefiting from the scheme, and many go on to become yoga instructors.
