The sadhvis, who were sisters, were gangraped by the Ashram in-charge Swami Aryanand and his associates in a field inside the premises last night.

The accused were identified as Aryanand, Ghanshyam Mandal, Vivekanand Sinha, Pankaj Kumar, Prem Yadav, Ratna Paswan and three other unidentified persons, police said.