All the students were rushed to the district hospital, where their condition is stated to be stable, even as the angry parents held the teachers and some officials hostage briefly before releasing them.
Earlier, the children started vomiting on the way home soon after they had puri-sabzi in school.
Meanwhile, Basic Shiksha Adhikari Rakesh Singh said prima facie there was something wrong with the 'puri' served to the children.
The BSA added that four teachers have been suspended, while services of five others including two cooks have been terminated.
Earlier in the month, around 21 kids were taken ill after consuming mid-day meal at a government school in a village in Kanpur district of Uttar Pradesh.
After the children complained of diarrhea and vomiting, they were rushed to a nearby district hospital.