The incident happened last evening when the accused Tinku (22) of the same village allegedly raped the girl when she was working in the field, they said.
Tinku threatened the victim when she raised an alarm and pierced a knife in her neck following which the villagers rushed to her rescue, police said.
The victim was taken to community health centre where the knife was taken off her neck and she was referred to the district hospital in a serious condition, they said.