Pitru paksha is the idyllic time chosen by the Hindu Shastra to offer oblations to the departed ancestors in a family. It is said that the descendants residing in the Pitruloka (the world of the departed souls) are allowed to visit the earth especially during the Pitru Paksha in a year to accept the oblations given by their descendants.
The offerings made as apt as prescribed in the Shastras are alleged to conciliate them and win their benedictions for the family. In India, offering worship to the Pitrus is done most superbly in some famous pilgrim centers.
Year on year, Pitru paksha befalls during the Krishna Paksha of Bhadrapada month just before the start of Navratri (Dusehra). In this year, the Mahalaya Pitru Paksha stretches from 13 September to 28 September, 2019.
While it is expected to perform rituals for the deceased year on year, Pitru Paksha is the right time especially designated for the ancestors to visit the families they left behind to accept the offerings they give.