105 girls, students of classes VII and VIII, fell sick after consuming the eggs served in their meal at Neyveli Lignite Corporation-owned Girls' High School, school authorities said on condition of anonymity.
The students were rushed to NLC Hospital and are now out of danger, hospital's child specialist Dr Sridharan said.
Soon after the girls vomited, with some of them fainting, distribution of food was stopped, officials said.
In a related incident, about 50 students of a government middle school in Madhubani district fell ill after eating food under the midday meal scheme.