[2] He is also credited with escorting two princesses into Tibet from their countries of Nepal and China respectively, before they married and became Songsten Gampo's queens.

[1] Among his many accomplishments, he is also the author six important treatises on Tibetan grammar, two which are included in the Tengyur and are entitled (Wylie) lung ston pa la rtsa ba sum cu pa, and rtags kyi 'jug pa.[1][3] Possibly re-edited by others at later dates,[1] the two treatises attributed to him might postdate the 13th century.

[4] Scholar R. A. Stein states, Thonmi Sambhota became the fourth of seven wise ministers of King Songtsen Gampo.

The Six Codices of the Tibetan constitution were drawn up, and state documents included treaties with Tang China, and court records.

Newly written domestic records included genealogies, histories, and poetry which were preserved in writing.