REIGN OF VIJAYADITYA SATYASRAYA
Institutional Zenith & Biscriptal Epigraphy (696 - 733 CE)
Palaeography: The Devadroni Slab
Biscriptal Records: A unique rectangular slab fixed in the fort-wall near the Devadroni steps contains two versions of the same text. Version A is in Telugu-Kannada, while Version B is in Siddhamatrika (Early Nagari) script. This provides the earliest instance of Northern scripts in the region, predating Pattadakal by 40 years.
Niravadya-Prakara: At the command of the King, the teacher Isanacharya constructed the faultless enclosure (prakara-bandha). This fortification likely encompasses the Navalingesvara and Balabrahmesvara shrines.
Spiritual Authority: The enclosure was dedicated to Isanacharya Swami. His dual role as architect and preceptor underscores the influence of the Pashupata order in Chalukyan statecraft.