Mahanavami is the culmination day of Navratri. It falls on ninth day of Navratri in Ashwin Month. Mahanavami is celebrated on Ashwin Shukla Paksha Navami, the ninth day of Durga Navratri. In 2018, Mahanavami date is October 18 during Sharad Navratri and March 25 in Chaitra Vasant Navratri.
Maha Navami is the last day of 9-day festival, Sharad Navaratri. As per Hindu beliefs, Durga puja on Maha Navami is equal to Durga pooja performed on all 9 days of Durga Navaratri.
Goddess Siddhidatri puja is performed on Mahanavami day.
On Mahanavami day, in South Indian states especially in Kerala, Ayudha Pooja is performed. Tools, operators, instruments and books are worshipped. The next day of Mahanavami is observed as Vijaya Dashami.
In some rural places, Janthu bali (animal sacrifices) are performed on Mahanavami day. It is to be noted that Hindu culture and society is against animal sacrifices.
Mahanavami in other countries
Mahanavami date in USA – October 18
Mahanavami date in Canada – October 18
Mahanavami date in UK & other European countries – October 18
Mahanavami date in UAE & other Gulf countries – October 18
Mahanavami date in Singapore – October 18
Mahanavami date in Malaysia – October 18
Mahanavami date in Australia – October 19
Mahanavami date in New Zealand – October 19