This temple is known as Mookambika of South. It is situated in Keezharoor village. Sree Adishankara had Darshan of Devi Mookambika on the banks of the river Souparnika at the foothills of Kudajadri. Similarly, Sree Nityananda Swami had a darshan of the Devi in the Mookambika temple of the South in Trivandrum District. The Devi fulfils all desires of the devotees and blesses them with prosperity. People from all parts of the country, of different castes and creeds, come here to have Darshan of the Devi and return happily, receiving Her Blessings. All those who visit the temple have the grace of the Devi and more the blessings of the Swamiji. The star Ashwathi' in the month of 'Kumbha' is very sacred here. This is the birth star of the Swamiji. In his childhood, he had to face many problems and make many sacrifices. In his twelfth year, he underwent many hardships but had complete faith in the Devi who appeared before him. He saw Devi in three different forms, they wiped away his tears and asked him not to be unhappy; they would be with him always and remain permanently in that place. This was his house now converted into a temple for the Devi. They blessed him saying that this place would become very famous. There was an aged Sanyasi with them who took out from his bundle rice and other ingredients with which he made 'Kanji' very quickly and gave it to the young boy. Even today this custom of giving 'Kanji' is being followed in the temple. All this happened 38 years ago during the star Aswathi in the month of Kumbha and even today people from different parts of the country visit the temple to receive the Blessings of the Devi and the Swamiji. This temple has been built according to the ancient art of architecture (Thachu Shastra) and Tantric rites. The main deity of this temple is Sree Rajarajeswari. The temple walls and Gopuram have been decorated with various kinds of 'Vaastu' sculptures. The four entrance doors to the temple have been carved out of rock. The walls of the 'Naalamballam are decorated with twenty different forms of the Devi. Beautiful figures depicting the stories of Devi Bhagawatha decorate the upper portion of the walls. The eastern Gopuram shows the stories of Ramayana, the western one of Sree Krishna Leela and the southern one is decorated with the stories of Kali. In the Northern Nada, on the roof of the 'Balikallu' there is the sculpture of the Devi's chariot driven by Lord Ganapathi, drawn by five lions. The sculpture attracts the attention of the devotees and can hardly be seen anywhere else in Kerala or Tamil Nadu. There are also separate shrines for Sree Ganapathy, Sree Hanuman Swamy and Navagrahas that remove planetary Doshas'. A Shiva Linga on a lotus-shaped 'peedam' is also represented here which is known as 'Bhairava'. There is a place set aside for Guru Baba, the Sanyasi who had come along with the three Devis. The Divine Footprints of the Devi can also be seen this place is known as 'Ulakanayaki'. Devotees who sit in this place and meditate for 15 minutes will be able to solve all problems that disturb them. The walls of this meditation room have figures of the Dasa Avatara. There is also the idol of Nagas and special poojas are performed during Ayilyam'. On the eastern side of the temple is the Ashram of Jagatguru Brahmasri Nityananda Swamy. Tripurasundari Mahapeethasthanam: This is the place where Swamiji had the Divine Darshan of the Devi in this particular form. It is on the eastern side of the temple outside the 'Chuttambalam'. Prashna Parihara Yagnam: This pooja is performed on Sundays, Tuesdays and Fridays. It is for the removal of the sorrows of devotees. Those who wish to perform this Pooja should be present in the temple on these particular days before 11 a.m. to register their names. During the star Aswathi in the month of Kumbha, the birth star of Swamiji there is celebration because it is an auspicious day. The Guru is worshipped like God, this is our Indian culture. Pongala Nivedyam is offered by devotees every day. But the Aswathi Pongala Nivedyam in the month of Kumbha is considered to be special and women from different parts of the country gather here in large numbers. Different kinds of offerings like 'payasam, white rice, jaggery, 'Ada' etc are prepared on this day. Poojas: Ganapathy human, Muzhukappu, Pournami pooja, Ayilya pooja, Navagraha pooja, Vidya Pooja, Trimadhuram, Bhagawathy Seva, Annadanam, Sumangali pooja, Akhanda Nama Japa, 'Ramayanaparayana, special pooja, Thiruvathira celebrations etc. Temple route: Thiruvanthapuram - Neyyattinkara, Perunkadavila via Keezharoor, Nedumangad-Kattakada, Ottashekaramangalam via Keezharoor, Kattakada - Ottashekaramangalam via Keezharoor, Vellarada Ottashekaramangalam via Keezharoor, Nagarkovil-Neyyattinkara, Amaravila via Keezharoor.