The Sirijanga script had almost disappeared for 800 years and it was brought back into use by Limbu scholar Te-ongsi Sirijunga Xin Thebe of Tellok Sinam Limbuwan present day Nepal.

[3] Limbu is spoken east of the Arun River in the following districts of Nepal (Ethnologue).

As Te-ongsi Sirijunga Xin Thebe spent most of his time in the development of Yakthungpan, Yatkhung culture, and Limbu script; he is considered as the reincarnation of the 9th century King Sirijanga.

As Te-ongsi Sirijunga Xin Thebe was astoundingly influential in spreading the Limbu script, culture, and language, Tasang monks came to fear that he might transform the social, cultural, and linguistic structure of Sikkim.

Therefore, Tasang monks captured Sirijunga, bound him to a tree, and shot him to death with poisonous arrows.

The cultural identity of any community was taken as a threat to the national unification by ruling elites until the recent years.

There were no specific laws about it, but the Security Act was enforced for such cases under the strong directives of Kathmandu.

Limbu has its own unique writing system, which is similar to Tibetan and Sikkimese scripts.

Since teaching of Limbu/Yakthung language and writing was banned by the Khas-Hindus in Nepal after the "Noon Pani Sandhi" between the Limbuwan and Gorkha Kingdom (Prithvi Narayan Shah), far more Limbus are literate in Nepali than in Limbu in Nepal.

History of Kirat-Yakthung writing can be divided into the following ways: The Limbu language has many papers and publications in circulation.

The Government of Nepal has published "Ani Paan" text books in Limbu for primary education from grades 1 to 12.

Kirant Yakthung Chumlung teaches Limbu language and script on its own initiative.