After being struck in the cheek with a knife, Hitesh Kumar, who is a Science teacher in M R Adarsh Public School here was rushed to hospital, Investigating Officer Gopal Rana told reporters.
Kumar received six stitches and was later discharged from the hospital.
According to Rana, Kumar had scolded Jugal and Vijay - students of Class X - for misbehaving in the class on October 11.
Both students seated on the last bench of the class were thumping the table, he said.
"When asked to stop thumping the table, the two students threatened Kumar and today they two called their two friends identified as Akshay and Hemant to teach the teacher a lesson for scolding them," he said.
Around 12:30 pm Kumar came out of the school on his cycle, he said adding, one of the boys attacked him and made a cut in his cheek with a knife.
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"They surrounded my and before I could react, one of them attacked me with knife," the teacher said.
Kumar handed over his complaint to the police, however, an FIR is yet to be registered.
"We have received the medical report, following which the two students and two others - all in the age group of 16 to 18 years - were rounded up for questioning in the matter," Rana said.