India’s first nuclear test

India’s first nuclear test

Author: BBC World Service March 5, 2026 Duration: 9:45

In May 1974 India successfully detonated its first atomic device. It had been developed in secret with the codename Smiling Buddha.

India called it a peaceful nuclear explosion, though the experimental device was in effect a plutonium bomb.

The test was seen as a triumph of Indian science and technology, but it led to the suspension of international nuclear cooperation with India, and spurred Pakistan to speed up development of its own nuclear bomb.

Dr SK Sikka, who was one of India’s leading nuclear scientists, spoke to Alex Last in 2018 about his role in the secret project.

Dr Sikka died in 2023 at the age of 82.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about the past. We take you to the events that have shaped our world through the eyes of the people who were there.

For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

Recent episodes explore everything from how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.

We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: the moment Reagan and Gorbachev met in Geneva, Haitian singer Emerante de Pradines’ life and Omar Sharif’s legendary movie entrance in Lawrence of Arabia.

You can learn all about fascinating and surprising stories, like the invention of a stent which has saved lives around the world; the birth of the G7; and the meeting of Maldives’ ministers underwater. We cover everything from World War Two and Cold War stories to Black History Month and our journeys into space.

(Photo: A crater showing the aftermath of the nuclear test. Credit: Reuters)


Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from how the Excel spreadsheet was developed, the creation of cartoon rabbit Miffy and how the sound barrier was broken.We look at the lives of some of the most...
Author: Language: English Episodes: 100

Witness History
Podcast Episodes
The Mexican song that captivated lovers during World War II [not-audio_url] [/not-audio_url]

Duration: 11:08
In 1944, as World War II was drawing to a close, the Mexican love song Besame Mucho crossed the Atlantic and became one of the most recognisable melodies of the post-war era. Its lyrics were daring for the time: an open…
Canada's worst E.coli outbreak [not-audio_url] [/not-audio_url]

Duration: 9:54
In 2000, contaminated drinking water in the small Canadian town of Walkerton triggered one of the country’s worst public health disasters.Heavy rainfall washed E. coli bacteria into the town’s water supply, but failures…
Montenegro votes for independence [not-audio_url] [/not-audio_url]

Duration: 9:53
Montenegro achieving independence from Serbia in 2006 was the final part of the break-up of the former Socialist Federal Republic of Yugoslavia. Montenegro and Serbia had been joined since the end of the First World War,…
Exposing King Albert II's secret child [not-audio_url] [/not-audio_url]

Duration: 10:32
In 1999, a teenager's debut book unintentionally caused a royal scandal in Belgium that wouldn't be resolved for more than 20 years.Each evening after he'd finished his homework, Mario Danneels dedicated his spare time w…
Poland’s underground newspaper [not-audio_url] [/not-audio_url]

Duration: 9:48
In 1981, Poland's communist regime imposed martial law and the dissident Solidarity movement was suppressed. In response, Helena Luczywo helped set up an underground newspaper called Mazovia Weekly to communicate uncenso…
The Sami protest song that made Eurovision history [not-audio_url] [/not-audio_url]

Duration: 10:40
In 1980, Norway’s entry to the Eurovision Song Contest included a traditional Sami joik song from the country’s indigenous community. It was the first time joiking was heard by an international audience. The song was ori…
When Sweden invented the reality game show [not-audio_url] [/not-audio_url]

Duration: 10:06
In 1997, Sweden changed television history. That year saw the launch of Expedition Robinson, widely regarded as the world’s first reality-based competitive television programme.The premise was strikingly simple. A group…
Uncovering a lost burial ground in Rio [not-audio_url] [/not-audio_url]

Duration: 9:28
In 1996, the bricklayer renovating Merced dos Anjos’ home in Rio de Janeiro told her something strange had happened. Bones appeared as he was breaking ground. As she inspected the site, she found they were human. But why…
The fossil that revealed the first dinosaur feathers [not-audio_url] [/not-audio_url]

Duration: 10:59
In 1996, a fossil unearthed in China became the first confirmed record of a dinosaur covered in feathers.Before this discovery, some palaeontologists had suggested that dinosaurs might have developed feathers and eventua…
Canada’s Truth and Reconciliation Commission [not-audio_url] [/not-audio_url]

Duration: 10:58
Canada’s Truth and Reconciliation Commission was a seven-year project which examined the country’s residential school system. For more than 100 years, Indigenous children were taken from their families to boarding school…