"Dhan" stands for "Wealth" and "Teras" for "Thirteenth"
This puja is done on the 13th day of Krishan Paksha in the Kartik month as per Hindu calendar, October-November as per Gregorian calendar.
It also happens to be the First day of the five-day Diwali Festival.
To get blessings for prosperity and well being
Process / Procedure
On Dhanteras, Lakshmi - the Goddess of wealth - is worshipped to provide prosperity and well being. It is also the day for celebrating wealth, as the word 'Dhan' literally means wealth and 'Tera' comes from the date 13th (trayodashi in Sanskrit and Teras in Hindi).
In the evening, the lamp is lit and Dhan-Lakshmi is welcomed into the house. Alpana or Rangoli designs are drawn on pathways including the goddess' footprints to mark the arrival of Lakshmi. Aartis or devotional hymns are sung eulogizing Goddess Lakshmi and sweets and fruits are offered to her.
On Dhanteras Hindus consider it auspicious to purchase gold or silver articles or at least one or two new utensils. It is believed that new “Dhan” or some form of precious metal is a sign of good luck.
2-3 Hours (Includes time for both preparation for Puja and actual Puja.)