A 30-year-old teacher of a private school was arrested on charges of sexual abuse, levelled against him by a 11-year-old girl student here today, police said.

Acting on a complaint given by the parents of the a fifth standard student, Krishnamurthy was arrested, police said.

The girl alleged that Krishnamurthy was sexually abusing her for the past one month and detaining her after class on some pretext, police said.