There is one country in the world with more people than any other nation on Earth, about 1.45 billion of them. And it has turned that scale into the fourth most powerful military on the planet. That country is India. It has a nuclear triad that can strike from land, air and sea. It has 2 aircraft carriers. It has missiles that can reach all of China. And in May 2025, this military was tested in live combat against Pakistan, in the first missile and air exchange ever fought between two nuclear-armed neighbours. In the last episode we measured Pakistan. Now we cross the border and ask the mirror question: how powerful is India, really? Let us measure it honestly, number by number.
People and Money
Start with people and money, because India's power begins with its numbers. Its population is about 1.45 billion. This is the largest on Earth. United Nations estimates say it has been ahead of China since 2023.
Analysts put its active military at about 1.45 million personnel. This is the second largest standing force in the world after China. It is backed by one of the largest reserve and paramilitary pools anywhere.
And the money matches the scale. SIPRI estimates India's military spending at about $92 billion in 2025. This is fifth in the world. It is against Pakistan's roughly $12 billion. That is an 8 to 1 gap. This is the same asymmetry we saw from the other side, and it shapes everything on this side of the border.
Army, Air Force and Navy
On the ground, the army is the giant service. It has about 1.24 million soldiers. It is built for a hard problem: two fronts at once. Pakistan is to the west. China is to the north and east, along the disputed Himalayan Line of Actual Control. There, mountain divisions hold some of the highest battlefields on Earth.
In the air, the air force is one of the world's largest. It has French Rafales, a big fleet of Russian-built Su-30 fighters, and the home-built Tejas light fighter.
At sea, the navy dominates the Indian Ocean. It has 2 aircraft carriers, including the home-built INS Vikrant. It has nuclear and conventional submarines. It also has destroyers and frigates built in Indian yards. The navy guards the sea lanes that carry the Gulf's oil past India's coast.
The Nuclear Deterrent
Then comes the deterrent. This is the ultimate guarantee behind all of it. Analysts estimate India's stockpile at around 180 to 190 nuclear warheads. This is slightly ahead of Pakistan's stockpile.
India has a full nuclear triad. On land, the Agni-5 ballistic missile can fly more than 5,000 kilometres. That is enough to reach all of China. In March 2024, it was tested with technology that carries several warheads on a single missile. From the air, India has nuclear-capable strike aircraft. And from the sea, ballistic missile submarines of the Arihant class patrol as a hidden second-strike force.
India's declared doctrine is called credible minimum deterrence, with a promise of no first use. At the tactical end sits the BrahMos. This is a supersonic cruise missile developed with Russia. It is fired from land, ships, submarines and aircraft. It is now exported to other countries.
The Real Test in May 2025
In May 2025, this machine was tested for real. For 4 days, India and Pakistan exchanged missiles, drones and air strikes. India said it struck militant infrastructure and Pakistani air and missile bases. It also said its air defences intercepted Pakistani strikes. Pakistan claimed it shot down several Indian jets, including Rafales. India acknowledged losses without confirming those numbers.
No winner is named here. What is verified is that modern jets, long-range missiles and layered air defences were used in live combat between two nuclear powers. And both sides stepped back.
But look at the wider board, and India's story turns north. Its missile ranges, its mountain army and its growing deterrent are aimed more and more past Pakistan, at China. China is the rival whose economy and military still dwarf India's own.
The Verdict
So, what is the verdict? By the Global Firepower index, analysts rank India fourth in the world, behind only the United States, Russia and China.
Its industrial base is rising. The Tejas fighter, the Vikrant carrier, the BrahMos and Agni missiles are all proof of this. Yet two things hold it back. First, it has long been among the world's largest importers of weapons. This is still true even as the Russian share of those imports falls and France, Israel and the United States supply more. Second, its economy still produces only about $2,800 per person. The IMF projects this economy at about $4.2 trillion, the world's fourth largest.
Regionally, India is dominant. Globally, it remains one tier below the top three. But it is climbing.
Next episode, we leave South Asia and ask: how powerful is Saudi Arabia?
Watch the video: How Powerful Is India? | Most Powerful Nations on Earth #9 on YouTube. This article is the full written version of the video, in simple English. See all articles on the Blogs page and more videos in the History Series.