A khatak (Mongolian: xɑtk) is a traditional ceremonial scarf, originated from Tibetan culture, it later adopted by the countries (Mongolia, Bhutan, Nepal, some part of Russia and India etc.) where Tibetan Buddhism was spread and they too adopted a similar kind of culture.
Khatak has many usage, Khatak are use for birth, wedding, funeral, ceremony etc. It symbolizes purity and compassion. It is usually made of silk. Tibetan khatak are usually white symbolising the pure heart of the giver, though it is quite common to find yellow gold khatak as well. Tibetan and Bhutanese khatak has symbol of eight lucky auspicious signs meaning to bring good luck and fortune. There are also special khatak with five different colors. Mongolian khatak are usually blue, symbolizing the sky.
Khatak can be presented along with incense and other religious items at weddings, funerals, births, graduations, arrivals and departure of guests. The Tibetans commonly give a kind acknowledgment of "Tashi Delek" (meaning good luck) at the time of presenting.