Lost Indian Books

The Barhaspatya Sutras, attributed to a teacher called Brihaspati, were the foundational text of the Cārvāka (or Lokāyata) school — ancient India's materialist and sceptical school of philosophy, which questioned the authority of the Vedas for matters beyond ethics, rejected the idea of an afterlife or soul separate from the body, and held that direct perception was the only reliable source of knowledge.

The original text is lost entirely; everything we know about Cārvāka philosophy survives only second-hand, through descriptions and refutations written by rival schools — Vedanta, Nyaya, Buddhist and Jain texts — that quoted Cārvāka positions in order to argue against them.

As part of Decoding the Vedas, we will include the Cārvāka school in our overview of the six Darshanas and beyond — not to promote its conclusions, but because understanding what the Vedic-era tradition argued against is often as illuminating as understanding what it argued for. The loss of the Barhaspatya Sutras themselves is a clear example of how even influential texts can vanish, leaving only their shadow in the writings of their opponents — exactly the kind of disappearance our digitisation work aims to prevent for texts that still survive today.

Tradition holds that the Mahabharata as we have it today — already one of the longest epic poems in the world — grew from earlier, shorter forms. The Jaya ('victory') is referred to as an early core narrative of roughly 8,800 verses, said to have been composed by Vyasa himself; the Bharata is described as a somewhat expanded version of around 24,000 verses, before the full Mahabharata grew to its eventual ~100,000 verses.

Neither Jaya nor Bharata survive as independent, separate texts today — they exist only as named stages described within the tradition's own account of how the epic grew, and as a reminder that the Mahabharata we read is the end point of a very long process of oral composition and editorial layering, not a single text fixed at a single moment.

The Sushruta Samhita, attributed to the sage-surgeon Sushruta, is one of the most remarkable surviving texts of the ancient world — a systematic surgical treatise describing over 300 surgical procedures, more than 120 surgical instruments, and detailed classifications covering roughly 1,100 diseases and 700 medicinal plants and substances.

It includes what is widely regarded as the earliest known description of plastic surgery — specifically rhinoplasty (reconstruction of the nose using a flap of skin from the forehead), a technique whose basic principle is still recognisable in modern reconstructive surgery — as well as descriptions of cataract surgery, caesarean section, and detailed pre- and post-operative care including wound management, suturing materials and anaesthesia.

Unlike the Barhaspatya Sutras, the Sushruta Samhita survives in a relatively complete form and has been studied and translated, but large portions remain known mainly to Ayurvedic specialists rather than the wider public. As part of our Ashtanga Ayurveda programs and Decoding the Vedas digitisation work, we will produce accessible explainer content on the Sushruta Samhita's genuine historical achievements — presented accurately and without exaggeration — as a source of pride in India's contribution to the history of medicine.

The Charaka Samhita, associated with the sage Charaka, is the other great pillar of classical Ayurveda alongside the Sushruta Samhita — a comprehensive text covering general medicine, diagnosis, treatment principles, pharmacology, physiology and medical ethics.

It is especially notable for its early articulation of personalised medicine — the idea that treatment should be suited to an individual's constitution (prakriti), the specific disease, the season, the place and the patient's daily routine — and for sections on medical ethics describing the conduct expected of a physician, including compassion, confidentiality and continuous learning, which read remarkably close to modern professional codes of conduct.

Like the Sushruta Samhita, the Charaka Samhita survives substantially intact and has been translated, but the gap is less about loss than about access: most people, including many in India, have never read even a summary of what it actually contains. We will treat the Charaka Samhita as a primary source for our Kayachikitsa-linked health programs, producing plain-language explainer content on its core diagnostic and lifestyle principles.

These four texts — two lost, two substantially intact — illustrate the full range of situations our digitisation and cataloguing work needs to handle. For texts like the Barhaspatya Sutras and the early Jaya/Bharata, our role is necessarily one of documentation and honest contextualisation: cataloguing what is known about a lost text, where it is referenced, and what can be reconstructed, even when the text itself cannot be recovered.

For texts like the Sushruta Samhita and Charaka Samhita, which survive but remain under-read, our role is translation, simplification and active promotion — closing the gap between 'preserved in a library' and 'understood and used by people today.'

For texts that are genuinely lost — such as the Barhaspatya Sutras or the early Jaya — full recovery of the original is not possible, but meaningful reconstruction of their content and arguments often is, through a careful, scholarly process of cross-referencing every surviving quotation, paraphrase and refutation found in other texts. This is a well-established method in textual studies — it is how much of Cārvāka philosophy has been reconstructed — but it is slow, specialist work that benefits enormously from being able to search across a large digitised corpus.

Each track will be tracked on our Phase 1 master catalogue with a clear status label, so that over time we can report concretely — not just 'we are preserving Indian heritage' in the abstract, but 'this many manuscripts rescued, this many lost texts partially reconstructed, this many surviving texts translated and turned into programs' — the kind of specific, evidence-based progress that matters both to donors and to the communities this work ultimately serves.