An Indian court awarded a life sentence on Monday to a police volunteer convicted of the rape and murder of a junior doctor at the hospital where she worked in the eastern city of Kolkata, rejecting demands for the death penalty and saying it was not a rare crime.

The CBI will file an appeal before the Calcutta High Court, seeking death sentence for Sanjay Roy, who was sentenced to "life imprisonment until death" by a Sealdah court in

The police had sought the death penalty in a horrific but familiar crime. Its handling by the local authorities had outraged the nation.