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Who was RN Kao? India's 'greatest spy' founded RAW, helped liberate Bangladesh, now subject of Karan Johar's next film

Dharma Productions has announced a film on RN Kao, the first chief of RAW, India's premiere military intelligence agency.

Updated on: Sep 21, 2026, 12:34:16 IST
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It has been six years since the first announcement was made about Karan Johar’s ambitious film on Indian spymaster RN Kao, and the film finally has a release date. On Monday, Dharma Productions formally announced that it is working on a film based on the legendary spy’s life. The film, which will showcase Kao’s contributions to India's intelligence-building, is being co-produced by Leo Media Collective. The announcement has brought focus back on RN Kao’s illustrious life and career, which laid the foundation for India’s espionage world.

Who was RN Kao?

RN Kao was an Indian bureaucrat and spymaster who established both RAW and NSG.
RN Kao was an Indian bureaucrat and spymaster who established both RAW and NSG.

Rameshwar Nath Kao was born in Benares in a Kashmiri Hindu family in 1918. He studied at Lucknow University and later at Allahabad University, before beginning his career in a cigarette company in Allahabad around 1940. The same year, he passed the Civil Services exam and joined the Indian Imperial Police (the predecessor to the Indian Police Service). Around the time of India’s independence, he was deputed to the Intelligence Bureau and worked on the security of Prime Minister Jawaharlal Nehru. In the 50s, he gained distinction with his work in setting up an intelligence and security organisation in Ghana, as well as helping the Chinese and British investigate the bombing of the Kashmir Princess, a Lockheed L-749A Constellation aircraft owned by Air India.

RN Kao (second from left) with Prime Minister Indira Gandhi (seated).

RAW and work during the Bangladesh War

His finest hour came during the 1971 India-Pakistan War. After Pakistan launched Operation Searchlight, RAW played a highly important role in the liberation of Bangladesh. They gave arms and training support to the Mukti Bahini militia during the initial stages of the war. Indian operatives travelled to East Pakistan to arm the local population and capitalise on the frustrations brewing within. In his book Inside R&AW, Ashok Raina wrote, “Another R&AW assessment sent to the prime minister spelt out the need for surgical intervention for the reports that came in gave positive indications that Pakistan was preparing for war. R&AW received the green signal. R&AW established guerrilla training camps along the border and began to train an illegal army.”

RN Kao shakes hands with Prime Minister B Vajpayee.

Later career

Kao had unlimited access to Indira Gandhi and was considered one of her confidantes. His longtime associate Victor Longer famously said, “Intelligence is the only government business that depends upon the spoken word. Sometimes you can understand signs and body language. Kao had that rapport with Mrs Gandhi.” But after Indira lost the 1977 General Elections, the new government was suspicious of Kao. He retired quietly as the new government took over. In 1980, when Indira Gandhi returned to power, he returned as the National Security Advisor, both to Indira and later to Rajiv Gandhi. In the 80s, he was instrumental in establishing the National Security Guard (NSG) as a counterinsurgency force. He was also instrumental in Sikkim's merger into the Indian Union in 1981. Kao retired from public life after 1989 and died in 2002, at the age of 83.

About the film on RN Kao

The large-scale espionage-actioner is based on the book Gentleman Spymaster by Nitin Gokhale, and the makers are scheduled to begin filming by mid-2026. The casting, director and other details are kept under wraps for now, but insiders confirm that an A-Lister will spearhead the project. The film chronicles the journey from 1955 to 1971, establishing the need for R&AW, leading to the formation of the first-ever mission in the 1971 war against Pakistan.

In a statement, Karan Johar shared, “Leo Media has painstakingly been researching and dramatising this narrative with passion for the past two years. We want this film to be a gripping story based on true facts to pay homage to RAW and honour their milestone year with a solid motion picture; all of us at Dharma are so excited to get going.”

The yet-untitled film is targeting a theatrical release on August 11, 2028, for the Independence Day weekend.

 
ABOUT THE AUTHOR
Abhimanyu Mathur

Abhimanyu Mathur is Deputy Editor, Entertainment at Hindustan Times. With almost 15 years of experience in writing about everything from films and TV shows to cricket matches and elections, he inhales and exhales pop culture and news. Currently, he watches movies and TV shows and talks to celebrities for a living, while occasionally writing about them as well. A journalism graduate of Delhi College of Arts and Commerce, Delhi University, Abhimanyu began his career with Hindustan Times at the age of 20, swapping classrooms for newsrooms at an early age. He began his journey in the early days of digital journalism, later switching to the madness of print journalism. Work has led him to far off places like Japan and Jordan, as well as to the interiors of Haryana and the Indo-Pak border. He dabbled in city reporting in places like Meerut, Gurgaon, and Delhi, covered the Olympics and Cricket World Cups, before finding his calling in entertainment and lifestyle during the pandemic. A Rotten Tomatoes Certified Film Critic, he is equally at home covering stories on ground as he is interviewing celebrities and studios, and sometimes prefers to shepherd teams in delivering traffic through the day. Even as his role has evolved from reporter to supervisor over the years, his first love remains writing (and of late, talking on camera). With a good understanding of cinema and its trends, and a keen eye for detail, he continues to spark conversations around showbiz for readers around the world.

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