Thursday or Brihaspativar is dedicated to Navgraha Guru in Hindu Astrology. The day is ideal for propitiating Guru also known as Brihaspati. The Guru Mantra for Thursday is to be chanted ‘OM Brihaspataye Namah.’
The number of time it is chanted is 108 or 1008 or 19000.
Apart from chanting the mantra one should also donate food to poor children and elderly people.
People observing Thursday vrat also wear ring made of Pukhraj or Mothi (