Relentless request for personal details may constitute gender-based sexual harassment

Dear PAO,

Yesterday, while walking on the sidewalk to work, someone approached me and asked for my name and my contact details. Since he is a stranger, I refused by shaking my head and walked away. Although he kept an appropriate distance, the man did not give up and followed me for several minutes, relentlessly asking for my name and my number. His actions made me feel unsafe, so I started running away to a more crowded area until he gave up. I want to know if I can file a case against this person.