Sentencing Roy to life in prison, a Kolkata court said Monday that the case didn’t meet the criteria to be classified as ‘rarest of rare’, and therefore, did not merit death penalty.

The CBI is likely to file the appeal against the Sealdah court order by Friday with detailed arguments in favour of capital punishment, they said.

An Indian court has sentenced the man convicted of raping and murdering a female doctor at a Kolkata hospital to life in prison.