The girl students are hostellers and had come to the playground after breakfast at the hostel mess.
They started vomiting and complained of stomach ache and were rushed to a nearby medical facility, an official told IANS.
The hostel management said that a probe has been ordered on whether the students fell ill due to food poisoning.
They were served normal potato stuffed paranthas for breakfast, the management official added.
Condition of all the girls is serious but they are out of danger, a district official said.