Thank you for bringing BSMS into the conversation!
As a Siddha physician, I’d love to add a few nuances…
While Siddha and Ayurveda share certain concepts, Siddha has its own unique and extensive framework through the 96 Thathuvams (principles), under which concepts such as the Panchabhutas (Five Elements), Mukkuttram (Three Humours),Udal Thathukkal (Seven Body Constituents), Agni, Naadi, Avathai (5 stages of consciousness), Pancha Koshas, Indriyas, Gunas, Aatharam (Chakras) Naadi, Thathukkal, Agni, and many other physiological and philosophical aspects are interwoven. Especially Pulse diagnosis.
Another common misconception is that Siddha focuses mainly on internal medicines or mineral preparations. Classical Siddha describes 32 types of internal medicines and 32 types of external therapies, utilizing herbs, minerals, metals, and animal products. All Siddha formulations, especially Mineral formulations undergo elaborate purification procedures, and many are now being explored through toxicity studies and nanomedicine perspectives, opening doors to exciting possibilities yet to be fully understood.
Though Siddha is deeply rooted in Tamil culture and classical Tamil literature, its branches are slowly reaching beyond Tamil Nadu. Institutions such as Santhigiri Siddha Medical College in Kerala and Manipal Academy of Higher Education are contributing to this growing awareness, and traditional practices like Varma therapy are gaining increasing attention among learners and researchers.
Perhaps these ancient systems are less like rivals and more like different dialects spoken by nature itself, each shaped by its own landscape, yet all seeking the same language of healing. It is a little bittersweet that Siddha remains unfamiliar to many outside Tamil Nadu, but the tides are changing. Every ancient tradition waits patiently to be rediscovered, and I believe Siddha is gradually finding its voice beyond its homeland…
And if anyone is curious to learn more about Siddha medicine, I’d be more than happy to connect and share whatever I know. After all, knowledge grows beautifully when it is exchanged. 
