The duration of the Tarpan ritual itself at Brahmakapal can vary. A basic Tarpan might take around 30 minutes to an hour. However, if performed as part of a larger Shraddha ceremony including Pind Daan, the entire process can take longer, potentially 1.5 to 3 hours, depending on the number of ancestors being honored and the specific rites included. Factor in time for initial preparations like bathing and consulting with the Pandit as well.