Having fled sectarian persecution in Tibet , Ngawang Namgyal established the Drukpa Lineage as the state religion .
In Bhutan , the Cho - sid - nyi was established by Shabdrung Ngawang Namgyal in the 17th century under the code known as the Tsa Yig .
Having fled sectarian persecution in Tibet , Shabdrung Ngawang Namgyal   established the Drukpa Lineage as the state religion .
In Bhutan , the Cho - sid - nyi was established by Shabdrung Ngawang Namgyal in the 17th century under the code known as the Tsa Yig .