Sparsa Agrawal was abducted on Thursday from Kursela in Katihar district of Bihar while returning home from school.
A joint team of regional investigators and Central Investigation Bureau personnel rescued Agrawal from the Morang district, 'The Kathmandu Post' reported.
The kidnappers had demanded a ransom of Rs 10 million, the police said, adding that a former bus driver of the girl's school was involved in her abduction.
The girl's father is a prominent local businessman and runs a petrol pump in Bihar.