The 20-year-old man took the minor girl from her parents on the pretext of playing with her Thursday evening, police inspector Jaipal Inwasi.
He then allegedly raped her at an agriculture farm in Harsud area, some 50km from the district headquarters, he said. When the man did not return with the toddler till night, the girl's mother lodged a police complaint, Inwasi said.
The police launched a search and found that the girl has been sexually assaulted, he said.
The police arrested the accused and booked him under IPC section 376AB and also relevant provisions of the Protection of Children from Sexual Offences (POCSO) Act, the inspector said.
Also read: GRP seizes cannabis from train passenger
With inputs from PTI.