Pancharatrotsav is a five-day vrata observed during Navratri Poojan. In 2017, Pancharatrotsava in Navratri begins on September 25 and ends on September 29.
Usually, it begins on Lalitha Panchami and ends with Saraswati Balidan or visarjan on Mahanavami day. Lalitha Panchami, Durga Sashti, Durga Saptami, Durga Ashtami and Mahanavami are the days of this Navratri Puja method.
The same rituals of Navratri are followed during Pancharatrotsava Vrata. Kalasha Sthapana is performed before starting the puja on first day (5th day of Navratri) and Kalasha will be moved after the completion of Puja on fifth day (9th day of Navratri). Those who are unable to perform the Navratri Puja for nine days, would prefer Pancharatri Vrata observance.
25 September 2017 – Pancharatrotsava Kalasha Sthapana, Lalitha Panchami
26 September 2017 – Durga Shashti
27 September 2017 – Saraswati Puja Avahan (Maha Saptami)
28 September 2017 – Saraswati Pujan (Maha Ashtami)
29 September 2017 – Saraswati Balidan / Visarjan (Maha Navami)