On April 12, the model had written a post on social media claiming how she was physically and emotionally abused during a work assignment.
The incident took place on Tuesday after the victim had arrived at the popular recreational area by the sea.
According to the police, the victim and the accused are the residents of the same building and the minor girl had gone to play when the incident occurred.
Special judge Bharti Kale on Wednesday found Shiv Kumar alias Shiva Rana guilty of the offence under provisions of the Protection of Children from Sexual Offences (POCSO) Act and IPC.
The police said that the victim met the accused through a matrimonial site.