New Delhi, Jan 21 (ANI): The Supreme Court on Tuesday commuted the sentences of 15 death convicts to life imprisonment, due to delays in their execution. The death penalty of 13 condemned prisoners has been commuted to life because of delay on part of President to decide their mercy pleas. The other two were given life sentence after it was revealed that the imprisonment while awaiting their sentence, had turned them mentally ill, according to media reports. The Supreme Court further said a minimum of 14-day gap is required between the information given to condemned prisoner about rejection of mercy plea, and the actual execution date. The decision of the SC is likely to impact many other death row cases.