Is Pind Daan in Varanasi effective even if performed many years after a person’s death?

Yes. The Garuda Purana explicitly addresses this situation, stating that Pind Daan performed sincerely at any time after death carries full spiritual benefit. There is no statute of limitations on ancestral rites in Hindu tradition. Many families perform Pind Daan for ancestors who passed away decades or even generations ago. The sincerity of intention and the proper conduct of the ceremony are what matter most.