Dhanteras, also known as Dhan Trayodashi, translates to ?the thirteenth day of wealth?. This day falls on the thirteenth day in the Krishna Paksha (the waning phase of moon, the second half of the month) of Kartik.
This day is believed to be extremely auspicious to seek the blessings of Goddess Lakshmi. On this day, products made of metals such as silver ornaments, utensils, silver coins, gold ornaments or gold coins,etc are purchased. Lamps are lit, fruits and sweets are offered to the Goddess Lakshmi and the deity Dhanawantari.
It is believed about Dhanteras that the process of this Pooja was explained by none less than Yamaraj (the controller deity of Death) during the course of which he stated that by worshipping Shri Dhanwantariji and by donating lamps (Deepdaan) a family is relieved from the fear of untimely death. If possible this deepdaan should be performed, after the Pooja, which is considered most auspicious.