Two parties walk into the dharmastha court. They have a fight about something. The judges need to know what kind of fight, because the kind tells them which rules apply, what evidence to ask for, what penalty to set. So the Arthashastra gives them a list. Sixteen kinds of dispute. Marriage. Inheritance. Land. Debts. Deposits. Workers. Partnerships. Sales. Gifts. Stolen goods. Insults. Brawls. Bets. Plus a "miscellaneous" for everything that doesn't fit. Manu later expanded the list to eighteen — the famous "eighteen feet of vyavahara" that ran through Indian law for the next thousand years.
Read the list and you don't just see a court docket. You see a society. Whatever shows up in the categories is what people had, valued, and could lose. Whatever's missing tells you what didn't exist yet.
Trautmann gives Kautilya's list directly: "Marriage, inheritance, immovable property, non-observance of conventions, debt, deposits, slaves and workers, partnership, sale and purchase, gifts, sale without ownership, robbery, slander, battery, gambling and betting, miscellaneous."1
Each name is a kind of relationship that could break down in ways the parties couldn't fix between themselves. So the kingdom's judges step in.
The categories cover a lot of different ground. Some are clearly contracts — debt, deposits, partnership, sale, gifts. Some are injuries — robbery, slander, battery (what modern courts would handle as torts or crimes). Some are family law — marriage, inheritance. Some are property — immovable property, sale without ownership. One — non-observance of conventions — covers customary practice failures that modern law treats through doctrines like good faith. Gambling has its own category because gambling debts produced enough disputes to need their own framework.
The Arthashastra runs all of this through one court system, with one set of judges. Modern law splits it into civil, criminal, family, contract, property, tort. Kautilya doesn't.
Marriage on the list means marriage was contractual, public, and disputable. The judges had to know what made a marriage valid, what dowry obligations existed, when dissolution was permitted. Inheritance on the list means property rules complicated enough to produce regular fights — which sons got what shares, what widows received, how multiple wives' children were handled. Immovable property as a separate category means real estate had its own framework, distinct from how moveable goods were handled.
Slaves and workers in the same category means labor relationships were regulated. Slaves had standing to bring complaints — particularly about being kept past the terms of their original obligation. Uncomfortable to read now. Historically significant: the kingdom's legal apparatus reached into labor practice rather than leaving it entirely to private power.
Partnership in the list means joint commercial ventures were common enough to produce a recurring dispute type — two parties pool capital, the venture produces returns, they fight about how to split it.
The pair "sale and purchase" plus "sale without ownership" matters. The first is the ordinary contract dispute. The second is when someone sold something they didn't actually own. Different remedies, different framework, different categories.
Gifts has its own slot because gifts produce specific dispute types — the giver claims it was conditional, the recipient claims it was complete, third parties (heirs, creditors) challenge the gift's validity.
Robbery, slander, and battery are a tort cluster — wrongs done to specific persons that produce a claim for damages. Gambling and betting got its own category because gambling was widespread, regulated as a state-licensed activity (see Vice Regulation Strategy), and produced its own kinds of fights about wagers and bets.
Miscellaneous is the honest category. The Arthashastra acknowledges that no taxonomy is complete. Disputes arose that didn't fit. The system needed somewhere to put them.
The omissions tell you what the society didn't have. There's no category for what we'd call intellectual property — without printing, without authorial copyright, that wasn't a category yet. There's no insurance disputes — modern actuarial science didn't exist, and what we'd call insurance was handled informally by guilds and family networks. There's no taxation disputes between subjects and the state — tax disagreements were administrative, handled by the samahartri and his officials, not the dharmastha judges.
Each absence is a window. What people don't yet fight about in court is what hasn't been turned into a structured legal relationship.
Trautmann notes the trajectory: "this real law was first formulated in writing in the arthashastra tradition, and only later absorbed into the dharmashastra tradition, beginning with the Laws of Manu."1 Manu expanded the categories to eighteen. The "eighteen feet of vyavahara" then ran through the Yajnyavalkya Smriti, the Mitakshara, the Dayabhaga, and the rest of the Indian legal tradition for a thousand-plus years. Kautilya's framework became the canonical structure for dispute taxonomy across South Asian law.
The categories shaped which arrangements were thinkable. People formalize the kinds of relationships the law recognizes, because formalization gives them somewhere to go when the relationship breaks. Categories that weren't on Kautilya's list — which then weren't on Manu's list — stayed informal for centuries longer than they otherwise might have.
The list is at line 1438 of the source.1 The court structure (dharmastha three-judge panel, available at frontier post / 10-village HQ / 400-village HQ / capital) is at line 1431. The complaint-driven civil-suits framing is at line 1434-1445. The Manu-tradition lineage is at line 1447.
The Arthashastra gives sixteen categories in the immediate list. Manu's later codification gives eighteen. Either Kautilya had fewer originally and Manu expanded, or the Arthashastra's broader Book Three actually treats eighteen with the immediate list compressing two pairs. Both readings are defensible. The "eighteen" is the standard count in subsequent legal tradition.
A second tension: the taxonomy is presented as practical and operational, but it also encodes specific social assumptions. Marriage as a category presupposes a particular kind of marriage (heterosexual, patrilineal, with dowry). Inheritance presupposes specific rules (sons inherit, daughters get stridhana). A society organized differently would generate different categories. The list is partly descriptive of judicial practice and partly prescriptive of which arrangements count.
[Single source — Trautmann/Kangle. Olivelle 2013 priority second source for verification. The list at line 1438 is attested in Kangle's translation. The "real law... based on real courts" framing and the Manu-lineage argument are Trautmann's interpretive contributions.]
What the law recognizes as a category becomes what the society treats as a structured relationship. People formalize what they can enforce. Categories that aren't on the list stay informal — sometimes for centuries.
History: Arthashastra — Law and the Two Courts — That page covers the courts (dharmastha civil + pradeshtri criminal). This page covers the categories the dharmastha handles. Together they describe the full apparatus from two angles. The handshake reveals what neither makes alone: the legal apparatus is both the courts and the categories, and removing either layer degrades the system. Modern reform debates often focus on courts (more judges, faster trials) without addressing categories (whether the legal categories still match the disputes people actually have). The Arthashastra would say both layers need attention.
Behavioral Mechanics: Behavioral Mechanics Hub — Categorical frameworks shape behavior. Categories that exist in law become arrangements people make formally. Categories outside law stay informal — and informal arrangements operate differently. The Arthashastra's categories produced a society with formalized marriage, inheritance, debt, partnership, sale. Modern category-additions (employment discrimination as a category in the 1960s, environmental harm in the 1970s, intellectual property in its current form) are reshaping what relationships get formalized. Legal taxonomies are choice architecture for entire societies. What gets added to the list eventually changes how people structure their lives. What's left off stays in the shadows.
The Sharpest Implication
If legal taxonomies pre-structure social relationships, then most modern reform debates focus on the wrong layer. Adding judges to handle existing categories is incremental. Adding categories changes what's thinkable. The Arthashastra's eighteen categories weren't a list of problems — they were the framework that made certain kinds of social organization possible. Category-reform is the most consequential and most underappreciated layer of legal reform.
Generative Questions
[VERIFIED — source re-read 2026-04-30]