Date: April 14, 2026 Subject: Analysis of an 11th-century Sanskrit encyclopedic work on architecture, town planning, and mechanical contrivances. 1. Introduction The Samarangana Sutradhara (Sanskrit: समराङ्गण सूत्रधार, meaning "The Compass of the Battlefield" or "The Architect of the Battlefield") is a comprehensive treatise on Vastu Shastra (science of architecture) and Yantra (mechanical devices). It is attributed to the Paramara King Bhoja of Dhara (reigned c. 1010–1055 CE), a polymath ruler of central India.