Dhanvantri Jayanti is dedicated Lord Dhanvantari, the Hindu God of Medicine or Ayurveda. Dhanvantri Jayanti 2020 is November 13 th(Friday). The deity invoked and worshiped by Ayurveda Practitioners. The Jayanti, or birth anniversary, is observed during different times by different Hindu communities. Mostly it is observed two days before Diwali. Dhanteras is observed on the day in western and northern parts of India.
Dhanvantri is believed to have appeared during the Churning of Ocean or Samdura Manthan by Devas (demi gods) and Asuras (demons). He was among the numerous auspicious items that appeared during the Churning of Ocean. Dhanvanthari appeared with elixir or Amruta.
Dhanvantri is also believed to be an incarnation of Lord Vishnu.
He is shown as holding the pot of Amrit in one hand and a leech in another hand. He appeared to eradicate diseases threatening living beings and for their well-being. Source : http://www.hindu-blog.com