Ink or Ink making is also an art related to the art of Calligraphy and writing. Like the calligraphy pen, ink is one of the fundamental needs while undertaking any kind of writing, printing, paintings including the engraving works as it need to be either sketch or write the primary writings before actual engraving is initiated. Therefore, it is an art that a calligrapher or a xylograph printer must know how to make ink by themselves. Nag-tsha or more often Nag-tse is a general term for any types of Ink used for the aforementioned activities but also referred particularly to the normal ink i.e. the black ink. As majority of the writings are written using the black ink thus, the usage of the term dominated the verities of inks be it gold, silver, copper, turquoise or vermillion. However, if somebody make quires like, “What types of ink?” the response will be referred to a definite ink like “gold, silver, copper, turquoise, vermillion, blood and normal ink.” However, due to the massive usage of normal black ink whether it is made from sooth or other black colour ingredients for writing and printing; not only the woodblock prints but also prayer flags therefore, the term Nag-tse (black ink) have been used as a general term for an ink. As mentioned above, Ink and pen making technology evolved simultaneously with the invention of writing culture. As Bhutan highly regards Guru Padmasambhava and Denmang Tsemang (?) one of his principal disciples who transcribed the teachings and gave the scripture for the practice of King Sindhu Raja and later said to be hidden as treasure in early 9th century. Later in the 15th century, Terton Pema Lingpa (1450-5121) resumed the writing tradition along with pen and ink making to decipher the treasure document mentioned as Shog-ser and also for woodblock printing purpose. The tradition met its thriving period in the 17th during Zhabdrung Ngawang Namgyal’s (1594-1651) reign after he instituted the State Government by established the Monastic Body and introduced the Calligraphy section (Yig-zoi-de) where monks learnt the art of calligraphy and ink making as well. Ink making was not only or writing but also required for making xylograph prints from the woodblocks stored in the respective Monastic Institutions esp. in the Dzongs (Fortress). Thereafter, the art was perpetuated and practiced by the successive Je Khenpos (chief abbot) and Druk Desis (temporal secular rulers) and Monarchs which is still surviving at a very small space due to the availability of modern inks from the market.