Ancestors can give blessings or hand over a curse for many coming generations, as it is indicating how the Ketu planet is influencing the 10th house of our chart. By doing a proper fire ceremony and following a special vrata (vow) for ones personal lifestyle, it can give mental/physical release and support ones personal carrier, and nullifies the pitri dosa (ancestor mishap) in general. It takes normally 2 - 4 hours to perform the ritual, excluding the preparation. Travel cost and expenses (like fire wood, fruits etc.) are not included and have to be talked over personally. In general there is a donation given to the purohit and the value for the ceremony is balanced by this. Please see under Donation the guidelines.