The victim yesterday filed a complaint against her paternal uncle Sajayi V Adal (22), working in a hotel, alleging that taking advantage of her disability, the accused raped her on many occasions, Assistant Police Inspector Laxman M Sariputra said.
The girl faces disability in walking properly and needs help for all activities.
The accused used to visit the girl's house at Kuntavali in Ambernath township of Thane when her parents were away and allegedly raped her several times, police said.
The girl also mentioned in her complaint that once the accused took her to his village Bhimashankar near Pune where he sexually assaulted her.
A case has been registered against the accused under section 376 (rape) of the IPC, police said, adding that a man hunt has been launched to nab him.