The Atmalingam, a symbol of Lord Shiva, holds immense divine powers. Once every 72 years, the Akasha Ganga, the heavenly dimension of the Ganga river from the universe, flows onto the Atmalingam. Those who drink Akasha Ganga's holy water become immortal and gain supernatural powers.
In 1932, during the colonial rule in India, a greedy youngster named Veerendra Bhatia, Tinnu Anand, with two greedy tantriks is in search of the Atmalingam from a cave guarded by a divine trident and a gigantic cobra. Their attempt ends in tragedy: the tantriks die and Bhatia loses his right hand. The sacred Atmalingam is swept away in the river and becomes invisible. Time passes and Bhatia, now 99 years old, continues to hunt for any trace of the Atmalingam, but finds nothing. The Akasha Ganga is slated to flow to earth in 2004. He learns about a professor who researched the Atmalingam and the Akasha Ganga and possesses vital information in a red diary.
Fearing for his life, the professor sends the diary to his student Swapna, Namrata Shirodkar, in the USA, so that Bhatia will not be able to become immortal. After receiving the journal, Swapna senses danger to her professor and returns to India in search of him, only to find him killed. While escaping from Bhatia, she runs into Anji, Chiranjeevi, a good Samaritan in the Uravakonda forest area, who serves Sivanna, Nagendra Babu, an Ayurvedic healer who is also raising four orphans.
One day, Anji stumbles on the Atmalingam and takes its possession. After learning about it, Bhatia and his men go after Anji and Swapna. As the D-Day of Akasha Ganga is fast approaching, Sivanna tells Anji that the Atmalingam should be sent back to where it belongs. So, Anji and Swapna go to the Himalayas to reinstall the Atmalingam in a temple built using shaligram stones by the legendary king Bhagiratha. The temple becomes visible only after 72 years. Using help from the diary, Anji enters the temple and faces many traps in the temple and survives to reinstall the Atmalingam in the sanctum of the temple. But the evil Bhatia drinks the water before Anji can drink it. One of the orphans gets shot. Anji and Bhatia get into a fight, and at last, Lord Shiva himself appears and kills Bhatia using his third eye. Anji manages to run from the temple, and a drop of the holy water revives the orphan who had been shot by Bhatia. Anji, Swapna, and the four orphans return to their home in a helicopter, and the Atmalingam and the temple vanish, never to be seen again.