Kamarupa inscriptions
The Kamarupa inscriptions are a number of 5th-century to early 13th-century rock, copper plate and clay seal inscriptions associated with the rulers and their subordinates of the Kamarupa region.
The common language of these inscriptions is Sanskrit.
The earliest of these inscriptions, the Umachal and Nagajari-Khanikargaon rock inscriptions, belong to the 5th century and written in a script which was nearly identical to the eastern variety of the Gupta script.
Though the language is Sanskrit, there appear systematic Prakriticisms that indicate an underlying colloquial Indo-Aryan language, called Kamarupi Prakrit.
26–27), and the numbers in the list correspond to the ones given in the find spot map.
9th-century Nagaon Copper Plate Inscription of Valavarman III. Text:
trailokya vijaya tuṅga yenāpahṛtaṃ yaśo mahendrasya Kāmarūpe jitakāmarūpaḥ prāgjyotiṣākhyaṃ puramadhyuvāsa rājāprajāraṇjana labdhavarṇṇo
.
Kanai-boroxiboa
rock inscription, 1207 CE, shows proto-Assamese script.