19 October 2015 is seventh day of Navratri Durga Puja. This day marks Durga Saptami / Mahasaptami Durga Puja.
Colour of the day: White
Naivedyam of the day: Garelu and lemon juice are offered as Naivedyam in South India. In North India, coconuts are offered as Naivedya (bhog / nivedana)
It is also observed as Saraswati Balidaan day as part of Saraswati Puja during Navratri Durga Puja. Saraswati Puja during Navratri is also known as Saraswati Triratra Vratam (Devi Triratra Vratham).
As per Navadevi Durga puja sampradaya, Devi Durga is adorned and worshipped as Goddess Durga Devi (Mahadurga alankaram).
Kalratri Navadurga is worshipped as part of Navadurga Puja.
Bagalamukhi (Pitambari) is the Goddess to worship on Maha Saptami as part of Dasamahavidya puja in Navratri.
Vajreshwari Devi Puja is observed as per Saptamatrika and Ashtamatrika puja rituals.
On Durga Ashtami day, Sandhi Puja and Bali Puja are observed during Durga Puja in Bengal.