The incident came to light when the woman yesterday complained to her family members, through sign language, that her nephew Himmat Harijan (38) raped her the previous night, police said.
On seeing her complaining to family members, the accused fled from there, they said.
She is deaf and mute since birth and was living in her parental house for some time, they said.
On the complaint of family members, an FIR was lodged against the accused. Medical examination of the woman has been conducted, police said, adding the accused nabbed last night.