Avani Avittam or Upakarma, also known as Yagnopaveetha Dhaarana, is an ancient ritual performed by Brahmin sect on Shravan Purnima day or Raksha Bandhan day in South Indian states – Andhra Pradesh, Tamilnadu, Karnataka and Kerala and in some parts of Orissa. This ritual is called as Avani Avittam in Tamilnadu and Kerala; and Yajur Upakarma in Andhra Pradesh and Karnataka.
Why Avani Avittam or Upakarma is held on Shravan Purnima?
During the observance of Aavani Avittam or Upakarma, Sacred Thread ceremony (Yagnopaveetha Dhaarana or Janeyu Dhaarana) is performed. This ceremony is observed as the Vedic rituals. On this day, children start their Vedic studies. The day after Avani Avittam is observed as Gayathri Japa Day.
Rig Veda Avani Avittam 2015 date is August 28, Krishna Yajur Veda Avani Avittam 2015 date is August 27, Shukla Yajurveda Avani Avittam 2015 date is August 29, and Sama Veda Avani Avittam date is August 19 in 2015.