Vishnu Saptami Vrat is a fast to observe on Shukla Paksha Saptami in Margashirsha Month. In 2016, Vishnu Saptami Vrat date is December 6.
Lord Vishnu is worshipped with Shodashopachara Puja on Vishnu Saptami. Special Naivedya like Kheer and other sweet recipes are offered.
Vishnu Sahasranama Stotram, Ashtakshari Mantram (Om Namo Narayanaya) and ‘Om Namo Bhagavathe Vasudevaya’ is chanted as many times as possible.
Lord Shiva is also worshipped on Vishnu Saptami as a remarkable example of ‘Vishnu is Shiva’ and ‘Shiva is Vishnu’.
Vishnu Saptami is also observed as Mitra Saptami, Nanda Saptami, Bhadraa Saptami and Nimba Saptami.