Shubham Malhade (24), a resident of Narhe, has lodged a complaint against four unidentified persons who threatened him at knife point and decamped with cash and a mobile phone. The complaint was lodged on Saturday at Warje-Malwadi police station. According to the complainant, he was riding his two-wheeler when the unidentified men accosted him on the Warje overbridge and took away cash and a mobile phone worth Rs 15,000. The incident took place on Thursday evening. Assistant police inspector (API) YD Yeole is investigating the case.