
The accused, Hidayat Hamzah, 22, pleaded guilty before magistrate Nurfarah Syahidah Mohd Noh.
The court also ordered the accused to serve a month in jail if he failed to pay the fine.
According to the charge sheet, Hidayat was accused of intentionally causing hurt to the boy, 13, at Taiping Lake Gardens at about 2.15am on May 7 under Section 323 of the Penal Code which carries a jail term of up to one year or a maximum fine of RM2,000 or both upon conviction.
Deputy public prosecutor Siti Nur Amalina Harun prosecuted while the accused was represented by National Legal Aid Foundation (YBGK) lawyer Ng Wei Jun.
A family member of the accused paid the fine.
Last Saturday, police detained a man to facilitate investigations into the assault of a disabled teenager at the Taiping Lake Gardens after a video clip of the incident went viral on social media.