The 27-year-old victim was alone inside her locked house since her mother, a daily wage labourer, was out for work. The accused A Muthu, a truck driver, is the victim's neighbour, said police.

On Thursday afternoon, Muthu managed to enter the victim's house and raped her.

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The victim, who lost her motor skills and became speech and hearing impaired after brain surgery a decade ago, informed her mother about the sexual assault through sign language on Friday.