Azad Singh - world's smallest teacher.

Azad Singh has a rare genetic disorder which meant he stopped growing at the age of five and at the age of 22 is trapped in a child's body.

Azad Singh was mistaken for a baby and labelled a circus freak, but 3ft tall Azad Singh has achieved his dreams of becoming a teacher - the world's smallest to be precise

Azad Singh teaches computer skills at an all-girls school in Haryana, India, where his teenage students tower over him.