The Aul police on Tuesday arrested a 20-year-old youth, Chaityana Mallick, of Haladianta village under the Bariramchandrapur police limits of Jajpur for his involvement in kidnapping a 16-year-old girl of the Aul police limits on August 19 and forcibly marrying her after keeping physical relationship with her, Aul police station IIC Salil Kumar Pradhan said the minor girl's family member lodged a complaint in this regard and, accordingly, police registered a case, started investigation and arrested accused, who was then produced before a local court.