Thatha or Thathi (English - Beard Band) is a type of cloth used by some Sikhs to fix their beards[1] after spraying them with hair spray such as Taft, Fixo, Swift or with water or oil.
Many orthodox Sikhs prefer to keep an open beard as a sign of respect, but some modern Sikhs prefer tying beards for neatness and appearance or even for the nature of the job such as Defence or Policing.
A thathi is tied on the chin This process takes 30 minutes to an hour.
Some Sikhs contend that the question of open versus fixed beard is not relevant.
They contend that Guru Gobind Singh Ji told Sikhs to keep uncut hair, and they maintain their beards by sporting uncut beards.