Police on Tuesday arrested 50-year-old Raj KUmar Kayastha of Kalikamai rural municipality-2 Biranchibarwa on the charge of sexually abusing a 5-year-old minor girl. Police arrested him from Chapkaiya or Birgunj metropolitan city on the basis of a complaint lodged against him by the victim's family. They stated in the complaint athat he sexually abused the minor girl on Monday, April 8. The victim underwent medical examination at Narayani sub-regional hospital. Police are further investigating on the incident.