The summon was issued for non-compliance of fact-finding and action-taken report, the sources said.
A group of standard three students of government-run Kolathia project Primary School had to clean the toilet as punishment for talking in the classroom in November last year.
The children had confided to their parents after returning home.
The incident triggered a public outcry even as parents and guardians stepped up demands for disciplinary action against those who inflicted humiliation on children.
H R Bansal, a New Delhi-based lawyer and rights activist, had drawn the attention of NHRC while desrcribing it as "an act of infringement of child rights".
In accordance with Right to Education Act, students are debarred from doing any form of manual work. Asking children to clean up toilet is not only regrettable but also unlawful, rights' activist, Bansal said.
Taking cognizance of Bansal's petition, the NHRC had sought for a compliance report from government agencies. But the school and mass education department remained unresponsive to NHRC queries on the purported incident.