Dhanteras also known as Dhanatrayodashi or Dhanvantari Trayodashi, is the first day that marks the festival of Diwali in India and the festival of Tihar in Nepal.
Dhanteras is celebrated on the thirteenth lunar day of Krishna Paksha in the Vikram Samvat Hindu calendar month of Karthik. Dhanvantari, who is also worshipped on the occasion of Dhanteras, is the god of Ayurveda who imparted the wisdom of Ayurveda for the betterment of mankind and to help rid it of the suffering of disease.[2]
The Indian ministry of Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homoeopathy, announced its decision to observe Dhanteras, as the “National Ayurveda Day” which was first observed on October 28, 2016.
Dhanteras marks the beginning of the five day festivities of Diwali, The festival is celebrated as "Lakshmi Puja" is performed in the evenings when tiny diyas of clay are lit to drive away the shadows of evil spirits. Bhajans, devotional songs in praise of Goddess Lakshmi, are sung and "Naivedya" of traditional sweets is offered to the Goddess. A peculiar custom in Maharashtra exists where people lightly pound dry coriander seeds (Dhane in Marathi for Dhanatrayodashi) with jaggery and offer the mixture as Naivedya.
On Dhanteras, homes that have not yet been cleaned in preparation for Diwali are thoroughly cleansed and whitewashed, and Lakshmi, the goddess of wealth, is worshiped in the evening. The main entrance is decorated with colorful lanterns, holiday lights and traditional motifs of Rangoli designs are made to welcome the Goddess of Wealth and Prosperity. To indicate her long-awaited arrival, small footprints are drawn with rice flour and vermilion powder all over the houses. On the night of Dhanteras, diyas (lamps) are ritually kept burning all through the nights in honor of Lakshmi and Dhanvantari.
On this day, Hindus consider it as an extremely auspicious day to make new purchases, especially gold or silver articles and new utensils. It is believed that new "Dhan" (wealth) or some form of precious metal is a sign of good luck. In modern times, Dhanteras has come to be known as the most auspicious occasion for buying gold, silver and other metals especially kitchenware. The day also sees heavy purchases of appliances and automobiles.
On this night, the lights are set out every night both in the sky lamps and as offerings at the base of a Tulsi plant and also in the form of diyas, which are placed in front of the doorways of homes. This light is an offering to Yama, the Host of Death, to avert untimely death during the time of the Diwali festival. This day is a celebration aimed at increasing wealth and prosperity. Dhanteras engages themes of cleansing, renewal, and the securing of auspiciousness in the form of Lakshmi.
In the village’s, cattle are adorned and worshiped by farmer’s as they form the main source of their income.
On the day of Dhantrayodashi, Goddess Lakshmi came out from the ocean of milk during the churning of the Sea. Hence, Goddess Lakshmi, along with Lord Kuber is worshiped on the day of Trayodashi.
According to a popular legend, when the devas and asuras performed the Samudra manthan (churning of the ocean) for Amrita (the divine nectar of immortality), Dhanvantari (the physician of the Gods and an incarnation of emerged carrying a jar of the elixir on the day of Dhanteras.
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