The 7th century Tibetan king Srong Btsan Sgam Po ordered that all foreign books be transcribed into Tibetan language, and sent his ambassador Tonmi Sambota to India to acquire alphabet and writing methods, who returned with Sanskrit Nāgarī script from Kashmir corresponding to 24 Tibetan sounds and innovating new symbols for 6 local sounds.

The museum in Mrauk-u (Mrohaung) in the Rakhine state of Myanmar held in 1972 two examples of Nāgarī script.
Archaeologist Aung Thaw writes: "... epigraphs in mixed Sanskrit and Pali in North-eastern Nāgarī script of the 6th century dedicated by (Kings) Niti Candra and Vira Candra", of a dynasty hailing from Vesáli in India.
The 7th century Tibetan king Srong Btsan Sgam Po ordered that all foreign books be transcribed into Tibetan language, and sent his ambassador Tonmi Sambota to India to acquire alphabet and writing methods, who returned with Sanskrit Nāgarī script from Kashmir corresponding to 24 Tibetan sounds and innovating new symbols for 6 local sounds.
The museum in Mrauk-u (Mrohaung) in the Rakhine state of Myanmar held in 1972 two examples of Nāgarī script. Archaeologist Aung Thaw writes: "... epigraphs in mixed Sanskrit and Pali in North-eastern Nāgarī script of the 6th century dedicated by (Kings) Niti Candra and Vira Candra", of a dynasty hailing from Vesáli in India.
Nāgarī script