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Ranveer Singh

Hey everyone,

If you have seen Dhurandhar, you know it is one of those films that keeps you glued to your seat from start to finish.

Ranveer Singh absolutely owns the screen as Hamza, the undercover Indian spy deep in enemy territory.

The movie, directed by Aditya Dhar (the guy behind Uri: The Surgical Strike), is packed with intense action, emotional moments, and some seriously smart spy tricks.

But there is one scene that’s sparked endless discussions online: the quiet, late-night moment where Ranveer’s character writes in his secret diary.

So, what exactly is Ranveer Singh using to write in his book in Dhurandhar? Let us dive in – but fair warning: major spoilers ahead!

If you have not watched the film yet, bookmark this and come back later.

In the closing moments (and the post-credits scene), Hamza opens a small, unassuming diary handed to him by another operative.

This is not just any notebook – it is his private record of targets.

After taking down a major terrorist leader, he calmly crosses off a name.

However, here is the twist that makes the scene so chilling: the writing is done with invisible ink.

Yes, you read that right.

The names and details in the diary are written in invisible ink, only visible under certain conditions (like heat, UV light, or a special developer).

It is a classic espionage tool that keeps sensitive information hidden from prying eyes.

In the film, this detail perfectly captures the paranoia and precision of a deep-cover agent.

One wrong move, and everything could fall apart.

The scene is beautifully shot – dim lighting, Ranveer’s intense expression, and that slow, deliberate movement as he reveals or adds to the list.

It is not just about crossing off a name; it is about showing that the mission is far from over.

The next page reveals even bigger targets, hinting at the sequel already announced for March 2026.

That quiet moment hits harder than any explosion in the movie because it reminds us how lonely and endless this kind of work really is.

Fans have also been zooming in on the pen itself.

From what we can see in the close-ups, it looks like an elegant, wooden-finished fountain pen – simple but sophisticated, nothing flashy that would draw attention.

Some pen enthusiasts online are guessing it might be inspired by brands like Jinhao, known for their affordable yet classy wooden fountain pens.

Whether it is a real brand or a custom prop, it fits the character perfectly: understated, reliable, and deadly effective when paired with that invisible ink.

Why Invisible Ink Makes Perfect Sense In A Spy Thriller

Invisible ink is not just cool movie magic – it has real history.

Spies have used it for centuries.

Ancient recipes included lemon juice (which darkens when heated), milk, or even urine (don’t try that at home!).

Modern versions use UV-reactive chemicals that glow under black light or need a special developer to appear.

In Dhurandhar, this detail adds authenticity and tension.

Imagine living every day knowing one careless note could end everything.

The film draws from real-life events and operations, and little touches like this make the story feel grounded even when the action goes full throttle.

Ranveer’s performance sells it completely; you can feel the weight of every stroke of that pen.

Quick Trivia To Impress Your Friends

Did you know invisible ink dates back to ancient Rome and China? One of the earliest recorded uses was by Pliny the Elder, who wrote about using milk from the tithymalus plant to write secret messages. During World War II, spies used everything from special chemicals to everyday household items. Pretty wild how something so old-school still feels cutting-edge in a 2025 blockbuster!

Dhurandhar has been breaking records left and right, and scenes like this are a big reason why.

It is not just action – it is smart, layered storytelling that stays with you long after the credits roll.

What did you think of the diary scene?

Did the invisible ink twist give you goosebumps, too?

Drop your thoughts in the comments – we love hearing from fellow movie buffs!

If you enjoyed this deep dive, stick around for more film breakdowns, behind-the-scenes insights, and Bollywood updates right here on THOUSIF Inc. – INDIA.

We have plenty more coming your way.