Santosh Singh appealed against the death penalty sentence to the Supreme Court of India on February 19 2007. The court also issued a notice to the Central Bureau of Investigation on an appeal filed by the convict against the high court's judgment. The defense lawyers of the accused Santosh Singh questioned the validity of the DNA report, one of the main causes for which he was given the benefit of doubt in the Trial court. Further the issue of Trial by Media is likely to be raised and whether excessive media coverage has influenced the verdict.
In October 2010, the Supreme Court upheld the conviction of Santosh Kumar Singh but reduced the death sentence to life imprisonment. Priyadarshini's father expressed disappointment with the CBI for failing to appeal against this decision.[7