After new Poonul wearing and during Kandharishi Tharpanam, Do all need to do tharpanam or only who lost father or mother have to do pithur tharpanam by wearing poonal as malai. There were lot of confusion and heated arguments. Can some one who is knowledgable, please explain. Certain people believe this tharpanam has to be performed because this is not for immediate parents and this is for great grand parents. Certain people believe you should not do this since your immediate parent at any cost you should not perform this tharpanam. Please some one provide authentic explanation with details.