The Bangalore Police on Saturday arrested an office assistant of Orchids International School in connection with the sexual assault on a three-year-old nursery student. The accused has been identified as Gundappa Munivenkatappa, 45, of A K Colony in Jalahalli North Bangalore. The arrest was made on the basis of medical evidence, statements by the child and a confession by the suspect, police commissioner M N Reddi said. “The case is still under investigation and we can’t disclose more details. We have recorded the confession of the accused before the concerned magistrate under the provisions of Section 164 of the Criminal Procedure Code,” Reddi said.