The Great Wall of Thorns - Storytrails
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The Great Wall of Thorns

Tax on salt was the third largest source of revenue for the British Raj. But with the alarming numbers of salt smugglers on the prowl, the British had to find a way to protect their revenue. So what did they do? They built a giant wall of thorns that went all the way from Punjab to Odisha! Read on to know more.

Today, our biggest salt-related struggle is how much to add when we’re cooking. Recipe books tell you to add “salt to taste”, but they don’t tell you whose taste! But in the 19th century, salt was not just a kitchen dilemma, it was at the centre of government policy. Tax on salt was the third largest source of revenue for the British Raj. 

To stop smugglers trying to avoid the tax, the British instituted the Inland Customs Line, which grew as their own territories expanded. The Inland Customs Line was essentially a line of check posts to collect tax on salt coming from outside British territory. But because the line snaked from Punjab to Odisha, covering almost half the country, the tax was hard to enforce and smugglers were constantly making clandestine crossings. So, the British began to build a wall of prickly thorns and bushes that they assumed would stop the smugglers’ carts and wagons in their tracks, which came to be known as the Great Hedge of India.  

Inland Customs Line
The route of the 1870s Inland Customs Line

We don’t know whose idea this was but we do know that this hedge was greatly expanded in the late 1860s by Allan Octavian Hume when he was the Commissioner of Inland Customs. Hume, of course, is most famous for co-founding the Indian National Congress. 

By 1878, this hedge of dwarf Indian plum trees, babool trees, prickly pear, bamboo and other plants stretched for more than 1500 kilometres and was staffed by more than 12,000 guards and officials. They had been working on it for at least 30 years. It was undoubtedly an impressive barrier – often more than 10 feet high and 6 feet thick – but it was also very difficult to maintain. Where the hedge wouldn’t grow properly, they would bring in dry brush from elsewhere and build an artificial barrier. This involved up to 250 tonnes of dry branches and brushwood per mile to shore up these sections.

Allan Octavian Hume
Allan Octavian Hume

So… did it work?

Well, it was definitely a mammoth project. And pointless. For all that work, all smugglers had to do was throw sacks across to waiting accomplices. Or, of course, they could also just burn parts of it down. While it seems ridiculous now, their prickly wall of thorns and the invisible customs line hides a painful history. High taxes on essential commodities like salt disproportionately affected the poorest citizens of the country. In times of famine, when food and money become scarce, the inability to buy salt could have contributed to the huge death toll. Salt is an unassuming substance but the human body cannot survive without it. The British never had a policy of lowering the salt tax during times of famine.

By 1879, the great prickly hedge of India, which one British officer had compared to the Great Wall of China, was abandoned. Why? There were financial reforms and some of the viciousness of the salt tax went away but not all of it. In 1930, Mohandas Karamchand Gandhi would choose the non-violent boycott of the salt tax as the centrepiece of his agitation against the British. While Gandhi’s satyagraha (civil disobedience movement) did not overturn British policy, it became one of the most iconic moments in Indian history and acted as a major catalyst of the freedom movement.  The salt tax was only abolished after India’s independence by Jawaharlal Nehru.

Salt march
Mahatma Gandhi, Mithuben Petit and Sarojini Naidu during the Salt Satyagrah of 1930

So, what happened to the hedge?

Historian Roy Moxham travelled across India in 1996 trying to trace the hedge, but couldn’t find any sign of it at all. Nobody seemed to have even heard of it. Just as Moxham was about to quit in frustration, he met an old priest in Airak in Uttar Pradesh who remembered where some remnants of the hedge could be found. It turns out – in a delicious coincidence – the priest had been a dacoit in his younger days! 

A Story by

Thomas Manuel

  1. Featured image – Public Domain via Wikimedia Commons, 
  2. Inland Customs Line – By Derivative of British_india.png (by Kmusser), changes made by Dumelow.derivative work: Dumelow (talk) – British_india.png, CC BY 3.0, Public Domain via Wikimedia Commons, 
  3. Allan Octavian Hume – Public Domain via Wikimedia Commons, 
  4. Salt march – Public Domain via Wikimedia commons,



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