Umachal rock inscription

The Umachal rock inscription is one of the earliest epigraphic sources discovered in Assam. Dated to the 5th century, the rock description was discovered in the north-eastern slopes of the Nilachal Hills (called Umachal), near Guwahati city. The artifact is dated primarily on the basis of the identification of the named Surendravarman with Mahendravarman (fl. c470-494) of the Varman dynasty. The script is in the eastern variety of the Gupta script and the language is Sanskrit prose. Though the Nilachal Hills is known for the Kamakhya Temple, a "shakta/tantra" site, this temple was for Balabhadra, a god of the Vaishnavite pantheon.
Another inscription, the Nagajari-Khanikargaon rock inscription, though undated, is sometimes claimed, on stylistic grounds, as the earliest.
Text.
<poem>
"mahārājādhirāja-śrī"
"surendravarmmaṇā-kr̥tma"
"bhagavataḥ-valabhadra"
"svmināya-idaṁ-guhaṁ" 
</poem>
Translation.
"This cave (-temple) of the illustrious Lord Balabhadra has been constructed by Maharajadhiraja Sri Surendra Varman."