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Research Paper | Cultural and Literary Studies | Volume 15 Issue 4, April 2026 | Pages: 945 - 950 | India
The Scientific Dynasty: An Epigraphic and Manuscript-Based Reconstruction of the Josyula Astronomical Lineage in Medieval South India
Abstract: This research paper investigates the historical, scientific, and epigraphical legacy of the Josyula (or Jyotishula) lineage, a specialized Brahmin community primarily situated in the Andhra and Kalinga regions of South India. Traditionally identified as pa?c??ga kartas (almanac makers), the Josyulas represent a unique "Scientific Dynasty" that internalized Jyotisha the Vedic auxiliary science of astronomy as a hereditary profession. By synthesizing three distinct layers of evidence Vedic-Siddhantic technical manuscripts, Epigraphic state records (stone and copper plates), and the Mackenzie Manuscripts (village chronicles) this study demonstrates how the family functioned as the intellectual and temporal governors of regional society. The paper traces the etymological transition of the Sanskrit title Jyotishika into the Telugu surname Josyula, mapping its geographic spread across the Northern Frontier (Srikakulam/Vizianagaram), the Delta Heartland (Godavari/Krishna), and the Southern Reach (Nellore/Rayalaseema). Key findings highlight the lineage's trans-regional migration from Aryavarta (Kashi) and the Central Deccan, acting as a "Scientific Diaspora" that harmonized the Sauramana (Solar) and Chandramana (Lunar) traditions. Through the analysis of royal titles such as Ganita-Chakravarti (Emperor of Mathematics) and Siddhanta-Kesari, the research establishes that the Josyula status was rooted in rigorous mathematical mastery (Graha-Ganita) rather than mere divination. Ultimately, the study concludes that the Josyula family served as the "biological computers" of the medieval and early modern eras, ensuring that Vedic time-keeping remained an exact and living science from the banks of the Vamsadhara to the Pennar.
Keywords: Josyula, Josyulu, Jyotishi, Panchanga Karta, Jyotisha, Ganita-Chakravarti, Mackenzie Manuscripts
How to Cite?: Dr. Indira Malapaka, "The Scientific Dynasty: An Epigraphic and Manuscript-Based Reconstruction of the Josyula Astronomical Lineage in Medieval South India", Volume 15 Issue 4, April 2026, International Journal of Science and Research (IJSR), Pages: 945-950, https://www.ijsr.net/getabstract.php?paperid=SR26415090733, DOI: https://dx.dx.doi.org/10.21275/SR26415090733