Mental pressure. Make her understand.

I am a student currently undertaking my compulsory internship at a CA firm where a girl who is another intern here who is also my senior proposed her love to me. I did not accept her proposal and we were not in a relationship also. Im also not interested in this relationship and i have conveyed the same to her. Yet she is persistent and is constantly behind me for almost a year now. I have tried talking to her to make her understand. I have even scolded her. If i ignore her by blocking her . She then sent me pressure from my other peers at office. She also makes me fall under a peer pressure situation apart from directly giving me pressure by constant texts and calls to accept her proposal. Her friends have also tried to consel her to bring her out of this situation. However she is not ready to take up any of these. She is very adamant in this matter. Kindly suggest some ways by which i can make her understand.