The 13-year-old girl's mother filed a complaint stating that the accused teachers had molested her daughter on different occasions, police said adding that the incident took place in Vaishali area of the city.
Gaurav molested the girl today in school's washroom while the other accused, Naveen did the same on Monday, the complaint said.
Meanwhile, school authorities have defended the accused teachers, saying that the allegations made by the girl's mother are false and they are trying to harm the reputation of school.