Ghat Chaturdashi is observed on fourteenth day during Pitru Paksha shraddh. Ghatchaturdasi or Shraddh Chaturdashi 2015 date is October 11.
Ghat Chaturdashi shraddh is dedicated to the dead ancestors who had an accidental death. On this day, Pitru devatas are worshipped and Brahmins are fed and offered clothes and other dakshina.
On the next day after Chaturdashi shraddh, Mahalaya Amvasya is observed. On the day before Chaturdashi shraddha karma, Trayodashi shraddh is offered to child ancestors.