Q: Is Qurbani on behalf of dead persons on Eid Ul Adha allowed?
A: One is allowed to make Qurbani for the deceased. Rasulullah (Sallallaahu Alayhi wa Sallam advised Sayyidina Ali (Radhiyallaahu Anhu) to make Qurbani for him (Rasulullah) after his demise. (Abu Dawood V3 P50).
Remember if one is by the means to make Qurbani, it will be compulsory to make Qurbani for oneself and thereafter, if one wishes, for the deceased. If a person is by the means, Qurbani on his own name is compulsory and optional for the deceased.