Ms Sadaqat had recently been forced to leave her teaching job at the school, after the principal had begun harassing her when she turned down the proposal from his son, who was 'twice her age'.
'She was badly tortured and then burned alive. We brought her to hospital in Islamabad but she succumbed to her wounds today,' Ms Sadaqat's uncle, Abdul Basit, told reporters from outside a burns centre in the capital.