Why does India drive on the left side of the road?

Every time a visitor from a right-hand traffic country arrives in India, one of the first things they notice is the unusual rhythm of the roads.

Cars move on the left, the steering wheel sits on the right side of vehicles, and overtaking generally happens from the right.

For nearly two-thirds of the world, where vehicles drive on the right side of the road, India’s traffic system can appear reversed.

So, why does India drive on the left side of the road?

The answer lies in a fascinating mix of history, colonial influence, old transport traditions and the evolution of road systems.

India’s left-hand traffic system is not a modern traffic rule created after automobiles arrived - it is part of a much older global divide between countries that drive on the left and those that drive on the right.

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Today, India is one of around 75 countries and territories that follow left-side driving, a system most commonly associated with former British colonies such as the United Kingdom, Australia and New Zealand. But the story of why India drives on the left begins long before cars, traffic lights and motorways existed.

The history of driving on the left

Before automobiles transformed transportation, people travelled mainly on horseback, in horse-drawn carriages or on foot. The tradition of keeping left is believed to have roots in these earlier forms of travel.

One commonly cited explanation relates to the fact that most people are right-handed. Medieval riders travelling on the left side of a road could keep their right hand - the dominant hand for many people - free to hold a weapon or defend themselves if they encountered danger. While historians debate the exact origins of the practice, left-side travel became established in parts of Europe over centuries.

Britain eventually formalised left-side traffic rules. The country introduced laws regulating road use in the 18th and 19th centuries, and this convention later spread throughout the British Empire. As India was under British colonial rule, the country adopted the same road system.

How British rule shaped India's road system

India’s modern transport infrastructure developed significantly during British rule, including roads, railways and administrative systems. When motor vehicles began becoming common, the existing practice of travelling on the left side continued.

The British had already standardised left-hand traffic across many parts of their empire, and colonies such as India inherited this system. This is why several countries with historical British connections - including India, Australia, South Africa and New Zealand - continue to drive on the left today.

Unlike some countries that changed their driving direction after independence or for economic reasons, India retained the system because the entire transport ecosystem had already been built around it.

Changing sides would have required a complete overhaul of road infrastructure, vehicle design, traffic signs, driver training and regulations.

Why do Indian cars have the steering wheel on the right?

India follows a right-hand drive (RHD) vehicle system, meaning the steering wheel is located on the right side of the car.

This arrangement matches left-side traffic. When vehicles travel on the left side of the road, positioning the driver on the right provides a better view of oncoming traffic while overtaking and helps drivers judge the road edge more effectively.

Countries that drive on the right side of the road generally use left-hand drive (LHD) vehicles, where the steering wheel is placed on the left.

It is important to distinguish between these two terms:

Left-side driving: Vehicles travel on the left side of the road.

Right-hand drive: The steering wheel is positioned on the right side of the vehicle.

India uses both left-side traffic and right-hand drive vehicles.

Why don't all countries drive on the same side?

At first glance, having one global driving system may seem logical. However, changing from left-side traffic to right-side traffic - or vice versa - is extremely complicated and expensive.

A country would need to modify - road layouts and intersections, traffic signs and signals, vehicle manufacturing standards, public transport systems, driver training rules, and emergency services procedures.

Some countries have changed sides historically, but such transitions require years of preparation. Sweden, for example, switched from left-side traffic to right-side traffic in 1967 after extensive planning and public awareness campaigns.

For India, with one of the world's largest road networks and millions of vehicles, such a change would involve enormous logistical challenges.

Countries that drive on the left side like India

India is part of a smaller group of countries that follow left-hand traffic. Other examples include United Kingdom, Australia, New Zealand, Japan, Indonesia, Thailand, Malaysia, Singapore, and South Africa.

Many of these countries either have historical connections with Britain or developed their transport systems under British influence.

Meanwhile, countries such as the United States, China, France, Germany and most of Europe drive on the right side of the road.

Is driving on the left safer than driving on the right?

There is no universal evidence that one system is inherently safer than the other. Road safety depends on several factors, including quality of infrastructure, enforcement of traffic laws, driver behaviour, vehicle safety standards, and pedestrian management.

Both left-side and right-side traffic systems operate successfully around the world.

The biggest challenge usually comes when drivers travel internationally and must adjust to a different system. A driver from India visiting the United States may need time to adapt to right-side traffic, while visitors from Europe or America often find Indian roads unfamiliar because vehicles move in the opposite direction.

Why does India continue to drive on the left today?

The simplest answer is history.

India drives on the left because the system became embedded during British rule and continued after independence. Over generations, roads, vehicles, driving habits and traffic laws developed around this arrangement.

Today, left-side driving is simply part of India's transport identity - from the busy streets of Mumbai and Delhi to highways connecting towns and villages across the country.

What may seem unusual to outsiders is, for millions of Indian drivers, the only way roads have ever worked.