All the girls, belonging to the Adivasi community in Barowa near Tezpur, were rescued from a house here after a tip off, police said.
Shakuntala Telenga was nabbed for allegedly trafficking the girls, they said.
She has allegedly confessed to having lured them by telling their families that they would be employed in respectable jobs in Mumbai.
Telenga was planning to take the girls first to Guwahati and then to Mumbai by train.
