The resident girl students of Sitakunda madrasa complained of stomach pain and vomited after having ferment rice (popularly known as 'panta bhat' in West Bengal) as breakfast and they were admitted to Baruipur sub-divisional hospital.
The sources said the students were administered saline and were attended to by doctors.
'Panta bhat', eaten by many people in West Bengal and other east Indian states, is prepared by soaking and fermenting cooked rice overnight in water.