Is it allowed to offer the rewards (Thawab) of Quran recitation, Dhikr or other forms of good deeds with the intention of "Radd-e-Mazalim" to Muslims and non Muslims who are alive?
It is useful to do so to ease ourselves from the responsibilities which we have for others who were been wronged by us. It is mentioned in Hadeeths that if you can not gain the pardon of people whom you have wronged, then pray for them and seek forgiveness for them and gift them the reward of good deeds.
But this is not Radd-e-Mazalim, as Radd-e-Mazalim is an estimated amount paid on behalf of people who have rights on us and the amount must be given to the poor people.
Wassalam.