The Supreme Court on Wednesday upheld the conviction of Santosh Kumar Singh in the 14-year-old Priyadarshini Mattoo rape and murder case but reduced the death sentence to life imprisonment, saying certain things were in his favour. A Bench comprising Justices H S Bedi and C K Prasad said, the conviction is maintained. However, the Bench said, to their mind, certain things are in favour of the appellant and they are converting the punishment of death sentence into life imprisonment. Singh had challenged his conviction and death sentence awarded by the Delhi High Court which had set aside his acquittal by the trial court in the case.