By Express News ServiceHYDERABAD: Two youngsters were arrested on Tuesday for allegedly harassing a woman over the phone. The arrested are Y Karthik and D Naveen, both hailing from Peddapalli district. The woman gave the mobile numbers of the unknown callers to her brother. When her brother called them, the callers threatened to kill him. A case was registered and based on mobile numbers, the duo were arrested on Tuesday..