The St Mary's high school, Pathnamthitta, had no power to give such directions which goes against the government circulars, commission member Shahida Kamal said in her order.
Beena, a teacher of the school, had approached the commission after the management sought an explanation from her for refusing to wear a coat over the saree.
According to the complainant, she had some physical difficulties in wearing the coat.
Men teachers or office staff were not given any such directions, she said.
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