The incident came to light on Saturday when a group of students wrote a letter to Alappuzha's District Magistrate (DM) complaining against their principal for offending religious sentiments.
"A lot of students are depressed that their religious sentiments have been hurt.
A lot of them are ashamed to tell their parents about this incident," said one student.
In the letter, the students also said the principal had even barred them from celebrating Saraswati Puja when it coincided with a strike in Kerala.
The students have alleged that before eating, the authorities were repeatedly asked whether it was vegetarian or non-vegetarian; however, the authorities assured them it was vegetables only, stated the complaint.
The students have alleged that they started feeling uneasy after eating the cutlet.