Her post-mortem report said she died of a fracture on her vertebral column and heavy internal bleeding.
His move has triggered speculation of a reshuffle of Congress nominees in the UDF ministry.
The Trade union leader wanted the officer to shell out illegal nooku kooli to head load workers.
The nurses said it was not safe to move along with the ISIS men to Mosul as there was the risk of attacks by the Iraqi military in transit.
Police have arrested three persons after his family filed a complaint.
CPM state secretary Pinarayi Vijayan said the move was ludicrous and the government should improve the infrastructure facilities at schools.
Opposition leader V S Achuthanandan said the government should have heard the Dalit principal, before shunting her out and said she was denied natural justice.
Her husband was apathetic towards the issue and often behaved in a manner supporting the son, said the police.
Narayanaswamy alleged the chief secretary was being vindictive since he had ordered the demolition of a few resorts in Munnar in 2007.
The rest of the 31 nurses, who joined the hospital in February but have not drawn their salary so far, say they want to work elsewhere in Iraq.