The Secret of the Nagas is the second book of Amish Tripathi, second book of Amishverse, and also the second book of Shiva Trilogy. The story takes place in the imaginary land of Meluha and narrates how the inhabitants of that land are saved from their wars by a nomad named Shiva. It begins from where its predecessor, The Immortals of Meluha, left off, with Shiva trying to save Sati from the invading Naga. Later Shiva takes his troop of soldiers and travels far east to the land of Branga, where he wishes to find a clue to reach the Naga people. Shiva also learns that Sati's first child is still alive, as well as her twin sister. His journey ultimately leads him to the Naga capital of Panchavati, where he finds a surprise waiting for him.

Tripathi started writing The Secret of the Nagas while the first part of the trilogy was being released. He relied on his knowledge of geography and history to expand the locations visited in the story. The book was released on 12 August 2011, and was published by Westland Press. Before its release, the author confessed that many revelations would be present in the book, including the true nature of many characters. Two theatrical trailers were created for showing in multiplex cinema halls, as Tripathi believed that the film-going audience also reads his books, and that would create publicity.

The Secret of the Nagas was in high demand before its release, with 80,000 copies pre-ordered. The book quickly reached the top of best-seller listings, selling 95,000 copies the first month, before going for a re-print. As of June 2015, over 2.5 million copies of the Shiva Trilogy have been sold at gross retail sales of over . Although the book was commercially successful, The Secret of the Nagas received mixed reviews from critics. While it received praise for its "impressive conception" and story development, it also received criticism for Tripathi's usage of non-literary language.

Plot synopsis

Continuing from The Immortals of Meluha, Shiva, the fabled savior of the land of Meluha, rushes to save his wife Sati from a Naga who escapes, leaving behind coins with strange engravings. After consulting with Sati's father Daksha and Dilipa, the king of Ayodhya, they come to know that the coin belongs to King Chandraketu, the ruler of the land of Branga in Eastern India. Shiva and Sati travel to Kashi, where a community of Brangas inhabit, in order to get more information on the Nagas. They are accompanied by Shiva's general Parvateshwar, associates Nandi and Veerbhadra, Ayurvati the doctor, and Bhagirath and Anandamayi, the prince and princess of Ayodhya. At Kashi, Parvateshwar is mortally injured in a riot at the Branga community. Their leader Divodas gives Parvateshwar a healing herb which works. Shiva learns from Ayurvati that the herb is only available at Panchavati, the capital of the Nagas. Divodas explains that they get the herbs from the Nagas due to a plague infesting Branga. Shiva decides to travel to Branga and Divodas orders special ships to be made for the journey.

Meanwhile, Sati gives birth to Kartik, her son with Shiva. As he leaves for Branga, Sati stays back at Kashi to prevent a lion attack on the local villagers. They are helped by a group of Naga soldiers, led by a man and a woman, who assist them in killing the lions. The Naga woman reveals herself to be Kali, Sati's twin sister and the man as Ganesh, Sati's child from her first marriage believed to have died at birth. Both were denounced by Daksha since born with deformities. Kali had two extra functioning hands while Ganesh's face resembled that of an elephant's. An overwhelmed Sati brings back Kali and Ganesh to Kashi.

At Branga, Shiva meets the recluse bandit Parashuram, who can enlighten him about the Nagas and the medicine. After defeating Parashuram, Shiva learns that he is a Vasudev, the group of scholars who have been guiding him on his journey. Parashuram is also surprised to see Shiva as the fabled Neelkanth; in remorse for his actions, he severs his left hand. He gives the recipe of the medicine to the people of Branga and joins Shiva's entourage. At Kashi, Shiva is introduced to Ganesh and Kali by Sati. Shiva recognizes Ganesh as the Naga who attacked Sati and as the supposed killer of his friend, the scientist Brahaspati. Enraged, he leaves Sati and takes up residence at the Branga locality. One day, while playing with Kartik at a local park, Ganesh saves them from a lion attack. Shiva forgives him and together with Sati, confronts Daksha, who confesses to murdering Sati's first husband and denouncing Kali and Ganesh. Daksha blames Shiva for causing distrust between him and Sati; he is asked to leave for Meluha.

Shiva travels to Panchavati under the guidance of Kali, who is the Naga queen and knows how to reach the capital through the treacherous Dandak Forest. On their journey, the entourage is attacked from the river side by a cache of ships containing the weapons of mass destruction known as Daivi Astra that was once forbidden by Lord Rudra, the legendary supreme ruler of India. After fleeing from the attack and safely reaching Panchavati, Shiva and Sati suspect Daksha to be behind this. Kali takes Shiva to a nearby school in the capital, where he finds Brahaspati, perfectly alive and teaching a class.

Characters and locations Tripathi believes that "Myths are nothing but jumbled memories of a true past. A past buried under mounds of earth and ignorance." The book has known characters from Hindu texts as well as those born from Tripathi's imagination, however the characters from the Hinduism do not inherit all of their classical traits.

Characters Shiva – The main character in the story. He is a Tibetan immigrant to Meluha and the chief of the Guna tribe. On arriving in Meluha and consuming the Somras (a potion), his throat turns blue making him the Neelkanth of the Meluhan legend, which speaks of the appearance of Neelkanth as a destroyer of evil. The Meluhans end up believing that Shiva would be their saviour. Sati – A Meluhan princess, she is the daughter of King Daksha. Shiva falls in love with her but could not marry her initially because of a law that considers her to be a Vikarma, an untouchable; he later marries her going against the law. According to the Meluhans, Vikarmas are people who bear misfortunes in this life due to sins of their past births. Sati is a skilled swords-woman and is very brave since childhood. Kartik – Shiva's and Sati's son Nandi – A captain in the Meluhan army. A loyal devotee of Shiva, who is often considered for his opinion and suggestions by Shiva. Veer Bhadra – A captain of Shiva's army and his close childhood friend. He was later renamed as Veer Bhadra, a title earned by once defeating a tiger singlehandedly. Bŗihaspati – The chief Meluhan scientist who becomes Shiva's good friend. Though he does not believe the legend of the Neelkanth, he believes that Shiva is capable of taking Meluha to its new glory. Daksha – The King of the Meluhans, he is appreciative of every effort that Shiva does to save his country. Veerini/ Prasuti – The Queen of the Meluhans, wife of Emperor Daksha. Bhagirath – The prince of Ayodhya, who is the target of an assassination plot. Anandamayi – The Princess of Ayodhya and the daughter of Emperor Dilipa. Passionate, mercurial and intelligent, Anandmayi makes for the perfect Chandravanshi. Parvateshvar – Head of Meluhan Army and a Suryavanshi, Parvateshvar is critical of Shiva's ways with the Meluhans, and is a dedicated man to Daksha. He eventually becomes an avid follower of Shiva as he realizes that Shiva could actually lead them to victory and finish Lord Ram's Unfinished Task. Ayurvati – The Chief of Medicine, Ayurvati is another intelligent and revered woman, who is capable of curing any disease. She is the first one to realize that Shiva is the "Neelkanth", their savior. Kali – Sati's twin sister who was separated from her after birth, due to their father denouncing her. Kali was born with two extra functioning appendages, hence she was ostracized from society and declared a Naga. Ganesh – Sati's first child who was declared dead by her father, as he was born with physical deformities. Ganesh was raised later by Kali, and they created the formidable Naga army.

Races Suryavanshis – The Suryavanshis are followers of Shri Ram and the Solar Calendar and try to lead a life that is as ideal as possible. The Suryavanshis believe in Satya, Dharma, Maan—truth, duty and honor. Chandravanshis – The Chandravanshis are followers of the Lunar Calendar. Traditionally the Chandravanshis and Suryavanshis are enemies. Naga – A cursed race of people who have physical deformities. They are extremely skilled warriors.

Kingdoms Meluha – The empire of the Suryavanshis, also known as the land of pure life. Meluha is based in the areas of the modern Indian provinces of Kashmir, Punjab, Himachal Pradesh, Delhi, Haryana, Rajasthan, Gujarat and the whole of Pakistan. It also includes parts of eastern Afghanistan. Swadweep – The empire of the Chandravanshis, also known as the island of the individual. Swadweep comprises the modern Indian provinces of Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, West Bengal, Sikkim, Assam, Meghalaya and all of the country of Bangladesh, besides most parts of Nepal and Bhutan. Brangaridai (Branga+hriday) – The heart of branga (literal meaning) or land of the Brangas, situated on the eastern part of India. Shiva travels there with his entourage in search of the recipe for a medicine and to know the truth about the Nagas. Dandak Forest – Located in the modern Indian province of Maharashtra and parts of Andhra Pradesh, Karnataka, Chhattisgarh, Orissa and Madhya Pradesh, Dandak is a dense and treacherous forest where the Nagas stay, at their capital Panchavati.

Characters and locations adapted as per the books from the series and from the official website.

Development and release Tripathi had initially decided to write a book on philosophy, but was dissuaded by his family members, so he wrote a book on Shiva, one of the Hindu gods. Tripathi's agent decided to publish the book himself. After its release in February 2010, The Immortals of Meluha went on to become a huge commercial success. It had to be reprinted a number of times to keep up with the demand.

While the first book was being released, Tripathi started work on the second part of the trilogy, then titled The Naga Secret. Tripathi wanted to start the story from exactly where he ended in the first book, with Sati's fate being revealed. He also wanted to expand the geography of the story, allowing the characters to travel far East of India and also far South to the land of the Nagas, an ancient empire that existed more than five thousand years ago and was filled with eternal wars and the legend of a blue-throated god who would save the world. In an interview with Mumbai Mirror in July 2011, he clarified that it was difficult for him to do research about the geographical situations of India in 4000 BC in just one year, so he relied on his own knowledge and that of his relatives. "I was an atheist till eight years ago, but I have always been surrounded by relatives with immense faith, so scriptures are something I have inadvertently grown up with and learned", he added. The mythological and the technical aspects included in the story also came from Tripathi's habit of reading storybooks on history and ancient technology; he was helped by his father, who is a scientist. Tripathi quit his job as a banker while writing the book, dedicating his whole time to the book.