Last verified: April 2026
Shalya Tantra — Classical Surgery
Shalya Tantra is the third of the eight classical branches — the surgical tradition documented primarily in Sushruta Samhita, composed by the surgeon-sage Sushruta and considered the world's oldest systematic surgical text. Its documentation of 300+ procedures, 120 surgical instruments, eight wound types, anatomical dissection protocols, and specific operations including rhinoplasty and cataract couching places it among the most remarkable medical texts of the ancient world.
The 120 classical surgical instruments
Sushruta Samhita, Sutrasthana 7 documents 120 Shastra (sharp instruments) and Yantra (blunt instruments/appliances) in precise categories: Swastika (cruciform — for exploring wounds), Sandamsha (forceps — 20 types), Tala (shield-like — for protection), Nadi (tube/probe — for fistula), Shalaka (probe rods), Upayantras (accessory instruments). The descriptions include dimensions, shapes, metals, and specific uses — sufficient detail that surgical historians have reconstructed several instruments.
Eight types of surgical incision (Ashtavidha Shastra Karma)
Charya (incision), Bhedana (puncture), Lekhana (scarification), Sravana (drainage/bloodletting), Sivana (suturing), Aharya (extraction — of foreign bodies, calculi, foetal parts), Visravana (evacuation — of fluid), Esana (probing). Each of these eight is documented with specific instruments, techniques, and post-operative care.
Rhinoplasty — the oldest documented nose reconstruction
Sushruta Samhita, Sutrasthana 16 documents the reconstruction of a severed nose using a pedicle flap from the cheek or forehead — the procedure performed on individuals who had been punished by nasal amputation. The description is sufficiently precise that British surgeons who encountered it in India in the 18th century (Gentleman's Magazine, 1794) were able to replicate it — this direct transmission led to the development of modern rhinoplasty techniques. The classical documentation is the oldest known surgical description of tissue flap reconstruction.
Linganasha Chikitsa — cataract couching
Sushruta Samhita, Uttarasthana 17 documents the Shalakakarma (needle operation) for Linganasha (blindness from lens opacity — classical cataract description). The procedure: a specially designed needle (Jalamandala Shalaka) is introduced through the lateral sclera, and the lens is displaced downward from the visual axis, restoring functional vision. This is the oldest documented cataract treatment in any medical tradition.