Three pieces, three kinds of place. One is an inland block of about five hundred square kilometres wedged between Gujarat and Maharashtra, with a river through it and an industrial town called Silvassa at the middle. One is a small coastal enclave on the Gujarat shore, with a fort, a fishing quarter and a beach. One is an island off Saurashtra, with a Portuguese fortress, a fishing fleet and an airstrip.

Since 2020 they are one union territory with one administrator and one budget. Before that they were two, and before that they were three colonial leftovers that India acquired in two different years for two different reasons. What holds the description together is not geography. It is a single economic mechanism that operated in all three for half a century.

Three geometries, one problem

Each piece is small, and each is surrounded by a state that is much larger. That is the defining condition. An enclave cannot tax its hinterland because its hinterland is somebody else's; it cannot plan a region because the region is outside its jurisdiction; and it cannot borrow cheaply, because it has no tax base of its own to pledge.

What it can do is legislate differently. A small jurisdiction with its own assembly or its own administrator can set a rate that its neighbours do not, and for as long as the difference is large enough to pay for the truck, goods will flow towards it. That is the whole of the economic history of these three places, and it is why they had factories before they had infrastructure.

Why the factories came

Under the old indirect tax system, a unit in Daman or Silvassa could bring in inputs, manufacture, and sell into the rest of the country while paying a good deal less tax than a unit across the border in Gujarat. For a certain kind of product — plastics, packaging, yarn, small electricals, anything with a simple process and a low margin — that difference was the entire business case.

The result was an industrial belt that was real but thin. Factories that existed because of a rate tended to be the kind that could move: rented sheds, leased machines, contract labour, no research, no brand, no long-term capital. The territory got employment and a municipal budget; it did not get the kind of industrial base that survives a change in the tax code.

What GST did

The same enclave before and after the rate difference disappeared ONE RATE, ONE DATE BEFORE 2017 the state around it a lower rate on every input goods move in DAMAN one of hundreds rented shed leased machine contract labour AFTER 2017 the same state around it the same rate to the rupee nothing to cross for DAMAN the same units rented shed leased machine contract labour The factories that came for a rate were the kind that could move. One channel survives: excise on alcohol was left outside GST. A factory that lived on a rate had to find another reason, at a moment's notice.
The tax code changed on one date; the sheds, the machines and the labour contracts did not. What the territory kept selling was the difference, and only where a difference was left.

On one date in 2017 the differential disappeared. The goods and services tax replaced excise and central sales tax across the country at uniform rates, and a factory in Daman now faced the same tax as a factory in Vapi. An industry built on a rate had to find another reason to exist, at a moment's notice.

Some of it closed. Some of it consolidated into larger units that had other advantages. Some of it survived because a second advantage had quietly grown up underneath the first: land was cheaper, clearances were faster, and the administration was small enough that a factory owner could get a decision in a week. That is a weaker reason than a tax rate, but it is a real one.

What the tax did not touch

One differential survived 2017, and it is the one that keeps the coastal piece busy: alcohol. Excise on liquor was deliberately left outside the goods and services tax, so it remains a local subject — and the state next door is a prohibition state. Gujarat does not sell liquor; Daman does, on a highway a few kilometres from the border, and the traffic is not a matter of a slightly lower rate. It is a matter of legality on one side and not the other.

That is why the coastal piece still has a retail economy with a visible footprint: shops sized for coach parties, warehouses behind them, a transport trade, and the permits and enforcement that go with any controlled commodity. It is also why the trade is politically uncomfortable in both directions — a revenue line for the territory, an enforcement problem for the state, and a permanent argument about which of the two has the better claim to the money.

The same is true of the smaller arbitrages that a boundary always creates: land registration charges, stamp duty, the cost of permissions, the wage floor that applies on one side and not the other. None of them is large enough to build an industry on. All of them are large enough to keep a border economy in business — a set of shops, a transport trade, a handful of warehouses, and the flow of people who come to buy what the next state taxes more heavily.

The inland block's real asset

Silvassa's advantage was never only fiscal. It sits a short drive from Vapi, one of the densest chemical and industrial clusters in western India, and from the Mumbai–Ahmedabad corridor beyond it. Land inside the territory was cheaper than land outside it, labour could be drawn from the surrounding districts of both states, and the administration could allot a plot without the queue that a Gujarat industrial estate imposed.

That is why the inland piece is the one that grew. It had an actual location advantage — a cheap seat next to an expensive one — and the tax differential was a bonus on top of it. Daman had the differential and a small crowded peninsula. Diu had a fortress and a fishing fleet.

One administration at three distances

Three pieces of one union territory, hundreds of kilometres apart, inside one boundary drawn after 2020 ONE ADMINISTRATION, THREE DISTANCES Diu an island Daman coastal enclave Silvassa inland block the factories about 600 km 40 km One administrator, one treasury, one police force, one budget — since 2020. WHY EACH PIECE EXISTED Until 2017: a rate. The same goods, taxed less on this side of the line. After 2017: cheap land, short queues, and an office that answers in a week. Schematic. Only relative positions are shown; the sea between them is not drawn.
A union territory assembled from three colonial leftovers is not a region. It is a set of points with one administrator, and the distances are the policy.

The merger's logic is administrative economy: one civil service cadre, one treasury, one set of schemes, one police force, instead of two of each for populations smaller than a mid-sized town. The arithmetic is compelling and the politics of it were settled in a single act.

But the geography does not merge. Diu is six hundred kilometres from Daman along a coast broken by estuaries; a decision taken in one place reaches the other by road, and the officers who implement it are posted across that distance. A territory of three pieces is not a small state — it is three small places with a shared letterhead, and the cost of that distance shows up in the details: the inspection that cannot be made this week, the file that waits for a ship.

What the three pieces now share is a question. Each was built to arbitrage a boundary that has been removed or made irrelevant. What remains is the older advantage — cheap land, a short queue, a small administration that can answer — and the possibility that in a country of large states, being small and quick is itself a product.

Sources and checks

  1. Government of India The Dadra and Nagar Haveli and Daman and Diu (Merger of Union Territories) Act, 2019
  2. Government of India The Constitution (Tenth Amendment) Act, 1961, and the Goa, Daman and Diu Reorganisation Act, 1987
  3. Census of India 2011 District tables for Dadra and Nagar Haveli, Daman and Diu
  4. GST Council Constitutional amendment, council decisions and rate schedules from 2017
  5. Ministry of Home Affairs Annual reports on union territory administration
  6. Administration of Dadra and Nagar Haveli and Daman and Diu District industrial profiles and land allotment policies

Last checked 1 November 2026 Yellowsea Huang Corrections