An inscription dating back to the reign of Vijayanagara ruler Krishnadevaraya has provided the earliest known epigraphical reference to the Bonalu festival in present-day Telangana, offering valuable historical evidence of the antiquity of the popular folk festival, according to Director of Epigraphy at Archaeological Survey of India (ASI) K. Munirathnam Reddy.

Significantly, the record states that these rituals and festivals were already in practice even before the period mentioned in the inscription, indicating that Bonalu has much older roots than previously documented. Scholars have also noted that practices such as Bonalu, Rangam, Kunamuggu and Pattnam (also known as Patnam), referred to in the inscription, continue to be part of Telangana’s living folk traditions to this day.

Munirathnam Reddy stated that the inscription, originally discovered at Gobbur, a border area between Telangana and Karnataka, is currently housed in the State Archaeology Museum, Hyderabad. Written in the Telugu language and script, it is dated Saka 1438 (Dhatu year), Jyestha śukla tritiya, corresponding to May 4, 1516 CE, a Sunday.

According to the inscription, certain levies payable to the government — including taxes on Rangam (oracle ritual), Kunamuggu, Gaddapattana and Bonolu — were exempt. It also records the grant of lands as sarvamanyam under the Pedacheruvu and Bollasamudram tanks, in addition to earlier endowments, for celebrating the Bonalu festival in the presence of the deity at Kondapalli. The grants were made on the orders of Rayasam Kondamarasayya.