Motumarri Venkata Naga Siva Prasad, a native of Bapatla town in Guntur district, was arrested on March 6 by the Cyber Crime Police wing of Andhra Pradesh CID at Bangalore Airport when he arrived from London, a senior police officer said.
The accused allegedly confessed that he and the girl, a BTech degree-holder, were friends from school days but she rejected his marriage proposal when he was in the final year of BTech course.
Following this, he allegedly created the fake Facebook profile. He also sent emails to her would-be husband, maligning her character, which led to the breaking off of the alliance.
Police have seized Prasad's laptop and mobile phone. He has been sent in judicial remand.