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.

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.

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.

Kali takes Shiva to a nearby school in the capital, where he finds Brahaspati, perfectly alive and teaching a class.

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.

[9][10] 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.

[9] "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.

[9] 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.

Rashmi Pusalkar designed the book cover, which depicted Shiva holding a snake and looking towards the banks of the city of Kashi.

[13] Two trailers were created for promoting the book, one depicting Sati dancing and one showing Shiva drinking the Somras, thus turning his throat blue.

[15] The UK publication rights of the Shiva trilogy, including The Secret of the Nagas was purchased by Jo Fletcher Books, with the deal being made by Claire Roberts at Trident Media Group, acting on behalf of the author and the author's Indian agent, Anuj Bahri of Red Ink Literary Agency.

The album is an extension of The Immortals of Meluha and The Secret of the Nagas with special tracks inspired by important junctures like Shiva's dance and the war speech in the books.

Artists like Sonu Nigam, Taufiq Qureshi, Palash Sen, Bickram Ghosh worked on the album.

[17] Aadisht Khanna from Mint praised Tripathi's portrayal of Shiva in the book, complimenting the fact that he was able to successfully deliver the humane side of his characters, and their emotions and motivations.

There are more twists and turns than in a Gordian knot, and at least two revelations of the 'Luke-I-am-your-father' variety...[20] And it really rankles, because there is so much scope for flair, adventure and wonder in the world Tripathi has imagined...

He felt that the solid plot and the unambiguous storytelling of The Immortals of Meluha was missing in The Secret of the Nagas, whose ending failed to live up the curiosity.

"[21] Kishwar Desai from Asian Age felt that in The Secret of the Nagas, the characterization of Shiva lost some of the fervor in it from the first book, and is cast more as a Bollywood hero, comparable to the likes of actor Salman Khan.

"[22] Some critics like Sandipan Deb of Outlook though favored the visual style more and felt that Tripathi stayed true to the fantasy genre.

[23] "Well-detailed world with its own geography, history and mythology, and he adds a quirky charm to his tale with dashes of modern science.

The writer has to keep the momentum of the first part going, while setting up all the pieces for the finale, scattering around a few clues to tantalise the reader enough to stay with the storyteller for the full journey.But Amish does not disappoint.

Mysterious hints dropped in Immortals get explained, the scale widens by several orders of magnitude, and the nature of Shiva’s quest becomes more complex, even as its ultimate goal becomes much more fundamental.

[19] This view was shared by Deepanjana Paul of The First Post, who believed that "if readers like the writing, they aren't averse to paying more.

[32] Further explaining his thoughts, Tripathi said "I genuinely believe those five years from today, we will have a situation when other languages will account for higher sales of books than in English.