Diwali which is also known as Deepawali is the most famous festival of the year. Diwali is the five days festivity period which begins on Dhanteras and ends on Bhaiya Dooj. However, in Maharashtra Diwali festivities begin one day earlier on Govatsa Dwadashi while in Gujarat Diwali festivities begin two days earlier on Agyaras and culminates on Labh Panchami.
During five days festivity various rituals are followed and with Goddess Lakshmi several other Gods and Goddesses are worshipped. However Goddess Lakshmi is the most significant deity during Diwali Puja. The new moon day, which is known as Amavasya, is the most significant day of five days Diwali festivities and known as Lakshmi Puja, Lakshmi-Ganesh Puja and Diwali Puja.
Diwali Puja is done not only in families but also in offices. Diwali Puja is the significant day for the most traditional Hindu businessmen. On this day, ink bottle, pens and new account books are worshipped. Ink bottle and pen, which are called Davat (दावात) and Lekhani (लेखनी) respectively, are sanctified by worshipping Goddess Maha Kali on them. New account books, which are called Bahi-Khate (बही-खाते), are sanctified by worshipping Goddess Saraswati on them.
The most auspicious time to do Diwali Puja is after sunset. The time period after sunset is known as Pradosh. The day of Diwali Puja is decided when Amavasya Tithi prevails during Pradosh. Hence no other Diwali Puja Muhurat is as good as Puja Muhurat during Pradosh even if it is available for one Ghati (approximately 24 minutes).