Indian traditional knowledge on defence fortification: Investigation to unravel historic subsurface changes in ancient Thanjavur. Indian Journal of Traditional Knowledge (IJTK), [S. l.], v. 25, n. 4, p. 416–426, 2026. DOI: 10.56042/ijtk.v25i4.19303. Disponível em: https://or.niscpr.res.in/index.php/IJTK/article/view/19303. Acesso em: 12 may. 2026.