The mishap took place at Harpalpur, 55 km from the district headquarters here, when 21 children in a tempo were on their way to RR Public School.
A jeep tried to overtake the tempo and in the process collided with the latter. As an impact of the crash, both vehicles overturned, Mishra said.
"The eight critically injured children were rushed to Jhansi (around 140 km from here) in Uttar Pradesh for treatment," Harpalpur Police Station Inspector R K Mishra said.
People travelling in the jeep escaped with minor bruises, he added.
A case has been registered and a probe is underway, the Inspector added.
