The Maha mudra/Yoni(Female genitalia) of Devi fell here.
She is the Shakti of Umananda.
Kamarupini vikhyata harikshetre sanatani /
Yonimudra trikhandeshi masemase nidarshita //
How to reach Kamakhya? :
INDIA>ASSAM>KAMRUP DISTRICT>NEAR GAUHATI>NILACHAL HILLS.
This is present on the bank of the river Louhitya(Brahma putra).
Nearest Bus stands: Nilachal, Gauhati.
Nearest Railway stations: Nilachal, Gauhati.
Nearest Air port: Gauhati.
The temple of Kamakhya is located on a hill named, Nilachal, near Gauhati [ Kamakhya Map ].
Kamakhya devi temple:
The main temple has seven bee hive shaped Sikharas, each topped by a golden Trishula. The temple consists of three major chambers. The western chamber is large and rectangular with an idol of Naga matha and is not used by the general pilgrims for worship. There is an idol of Chamundeswari towards south of this chamber.
The middle chamber is a square, with a small idol of the Goddess. All the decoration and routine pujas of Kamakhya and Umananda are conducted here. It leads to the Garbha griha of the temple in the form of a cave, which consists of no image but a small natural underground spring. The spring emanates from a fissure in a large rock that symbolizes Yoni. Though the temple is aligned facing east like most Hindu temples, the worship of the Yoni is performed facing north.
Idols of Ganesha,Vishwa karma are also present in this temple premises.
The temples of all Dasa maha vidyas(Kali,Tara, Bhuvaneshwari, Tripura sundari, Bhairavi, Chinnamastha, Dhumavathi, Bagala, Mathangi, Kamala) are present here on the Nilachal. Temples of Kala bhairava, Ghanta karna are also present here.
Monkeys, tortoises and a large number of pigeons are living in the temple suggesting that Kamakhya is the mother of all.
Lord Brahma created the whole world. After the creation he became proud and thought himself as the supreme creative force. Jaganmata Mahakali noticed this. She decided to teach a lesson to Brahma and created a demon named Kesi. As soon as born, the demon ran towards Brahma to swallow him up. Brahma feared. He went to Lord Vishnu and asked him to save. The demon built a city named Kesi pura, and began to harass the world.
Vishnu told Brahma to worship Mahakali. Brahma realized his mistake and prąyed Mahakali. The Goddess satisfied and burned the demon in to ashes by Hum kara. She told to Brahma that he should create a hill from the ashes of Kesi, with full of edible grass for cattle, and his sin would be reduced in proportion to the grasses grazed by the cattle. She created Yoni circle out of her own creative force and told to Brahma to worship it. But, Brahma couldn’t see it because of his sin. He did a big Tapasya and brought down a luminous light from the sky and placed it in the Yoni circle created by the Goddess. Then after, all the gods are worshiping Jaganmata(Kamakhya Mahakali).
Three main festivals which are conducted in Kamakhya temple are-
The Goddess under goes menstrual period for three days starting from Sapthami, in the month of Ashadha ( Around 23rd to 25th of June). The water of the natural spring turns red, called as Menstrual fluid. The Yoni shila will be covered with a cloth and the temple closed for those three days. It is believed to be inauspicious to till the ground or to plant seeds during this period. On the fourth day a great festival is conducted. The sindhur and the parts of the cloth, are considered as the blessings of the Goddess and are used in Tantrik pujas.
This famous festival will be conducted in the month of Ashviyja.
This festival is conducted for Manasa devi, in the months of Jyeshtha, Ashadha, Sravana, and Bhadrapada and also during the times of pestilence and disease. The name of this festival came from the tremendous sound produced by the instruments, such as Drum, Dhole etc., used in it.
Kamakhya is worshiped by Vamachara sadhana.
Sacrifice of animals such as buffalos, goats, Monkeys, Tortoises, Pigeons(all male and preferably black) is done to satisfy her. It is known that the daily offering to Kamakhya devi includes a Buffalo, goat, fish, Sugarcane, and a Kushmanda (white ground-melon). Even men are sacrificed before her in the olden days.
Kalika purana and Yogini tantra will give a lot of description about Kamakhya.