7th day of Navratri 2016 is October 7 in Durga Sharan Navaratri. This day marks Durga Saptami, Maha Saptami, Devi Saptami. But due to Vriddhi Tithi during Navratri, in 2016, it is Durga Sashti / Maha Shashti.
It also marks the second day of Durga Puja in Bengal, Assam, and other Eastern parts of India.. It was April 13 in Chaitra Navratri (Vasant Navratri).
Today’s Goddess to worship in Navadurga Sampradaya is – Maa Kalratri
Today’s Goddess to worship (Alankaram) in Vijayawada Kanakadurga Temple is – Sri Mahalakshmi Devi
Today’s Goddess to worship in Dasha Mahavidya sampradaya is – Dhumavathi Mahavidya (Kalabhairavi)
Today’s Goddess to worship in Saptamatrika / Ashtamatrika Sampradaya is – Chamunda (Chamundi / Charchika)
Today’s Navratri colour is – Read this post for Navratri colours list for 2016
Today’s Naivedyam or food recipe to offer to Durga Mata is – read this post for Nine Naivedyams for Durga
In Nepal, Navratri is celebrated as Dashain. On the seventh day of Dashain, regular puja to Goddess Durga is observed along with the above said vratas. Most of the devotees are not aware about the sixth day of Vratas of Navratri.