According to the police, the boy was in a relationship with the victim, a first-year college student, for the last one year.
The boy had gone to the girl's house three months ago and clicked some pictures of her on his mobile when no one else was in the house. He later used the pictures to blackmail her and insisted that she get into a serious relationship with him which she refused, said the police.
The boy later circulated the pictures among his friends through MMS and also uploaded her pictures on the internet.
He was later arrested after a complaint was lodged against him.