It's a diplomatic failure (to us) if we are extraditing a criminal accused of henious crime with pre-conditions and that too from a country who has signed extradition treaty with us. I believe India has to chew its words or take Portugal into confidence to free it from any preconditions to avail full justice. Moreover, how would a court's sanctity be maintained if it is not acting with full wisdom & its hands are tightened with these diplomatic prerequisites.