The three accomplished scholars of Srouta Saiva Siddhanta popularly called as Siddhatriam are - Revana Sidha, Marula Sidha and Aeko Rama Sidha.

(1) Revana Sidha also known as Renukacharya was born in Kulyapaka village coming out of the Someswara Lingam there in Kurnool District of Andhra Pradesh. He blessed Agasthya Maharshi with Sivatatwam. He is reported to have presented the "Chandramouleeswara Lingam" to Sri Aadi Sankaracharya. He belongs to Atreya Gotram. He exhibited the greatness of the Ishta Linga worn by him to King Chandraketha, son of Viswavarma and has shown him miracles including Kailasam, the abode of Siva in his Istalingam. Sivayogi Sivacharya refers to his accomplishments in his ancient text "Saiva Siddhanta Sikhamani". He is credited with propagating "Sivadwaita Siddhatna" throughout the country for 1400 years, before disappearing into the Jyotirlingam at Somnath, in Gujarat. His wife's name is Durgadevi and son Triambakeswara. His descendents bear the sur name of Kasinadhuni and Chaganti.

(2) Marula Sidha was also known as Maluradhya. He is of Bharadwajasa Gotram and "Sadasiva Amsa Sambhoota" and propagated Saiva Siddhanta. He did penance at Gokarna Kshetram, now in Karnataka and is an "Ishta Lingadhari". He exhibited miracles or "Mahimas" by constructing a big lake near Srinagar for King Veerakala. Just by sprinkling water mixed with Bhasma has given life to the King to live a hundred years. His descendents bear the sur name of Tadikonda.

(3) Aeko Rama Sidha was also known as Aeko Ramaradhya. He was born from Ramanadha Linga with "Aprakruta Divyadeham". He was also called as Ghantakarna and stayed in Himalayas near a big lake around Kedaram. He has given Saiva Deeksha to Ushadevi, daughter of Bana. He was having a number of disciples in Kashmir, near North of Kedara Peetham including the king of Kashmir. He belongs to Haritha Gotram. His son's name is Vallinadha born at Varanasi with the blessings of Kasi Viswanadha. By the power of his great penance, he has created a big lake near Someswara Kshetram and his descendents are known under the sur name of Mallampalli and he obtained an Agraharam from the king.

The three teachers on Srouta Saiva Siddhanta popularly called as Acharyatriam, are - Swetacharya, Lakuleesacharya and Neelakantacharya.

(1) Swetacharya is also called as Batta Rushi and is reputed to be a "Sarva Vedanta Tatwadarsi", "Padavakya Pramanajna" and exponent of the "Sivadwaita Siddhanta Pratipadaka Brahmasutras" and occupied an important place and he is a great Sivayogi.

(2) Lakuleesacharya is also known as Nakuleesa. He is said to be holding in his left hand "Beejapura Phalam" and in his right hand "Lakulee Phalam" and is having three eyes on his head. His disciples are four namely, Kusika, Garga, Mitra and Kourushya. He did great penance at Baroda and propagated "Pasupata Siddhantam" till Madhura. In Madhura city he installed "Pasupata Saiva Sthambham", and lived in 2nd century before Christ.

(3) Nilakantacharya is also known as Nilakanta Sivacharya. He has written the Sivadwaita Siddhanta Bodhaka Sareerika Brahmasutra Mimamsa Bhashyam, also called as Nilakanta Bhashyam. He was a Pasupata Vratadhari and was Guru to all the 18 castes and propagated the Sivadwaita Siddhanta. He is of Bharadwajasa Gotram and resided at Kaleswara Kshetram, near Warangal, Andhra Pradesh. It is claimed that he stayed for some time at Kalahasti also. His father was Visweswararadhya and mother Gowri Devi. He was born of Neelalohita Rudramsa. He was initiated into the Gayatri Mantra by Bodhayana Maharshi and was given Sambhava Deeksha by Swetacharya. He was considered as "Maha Pratibhasali" and propagated Saivadwaita Siddhanta. His achievements are given in detail under Neelakanta Bhashyam.

The three reverend Srouta Saiva Scholars popularly called as Aradhyatriam are - Udbhataradhya, Kotipalli Viswaradhya and Vemanaradhya

(1) Udbhataradhya was born from Varanasi Visweswara Linga. His father name is Visweswara and mother Annapurna. He was the Court guru of King Bhojaraja of Vallakipuram. He wife's name is Leelavathi also known as Sundari. He rescued seven hundred Gandharvas who were cursed and were living as demons. He was the guru for all the four varnas. He is of Bharadwajasa Gotram and was having 64 kings as his disciples. He has written number of books including Yajurveda Bhashyam, Kavyalankara Sangraham, etc. His descendents are known under the sur name of Mudigonda.

(2) Kotipalli Viswaaradhya was born to Someswara and Bhavani in 12th century AD at Kotipalli in East Godavari District of Andhra Pradesh. He is of Kashyapa Gotram. He is stated to have resided at Pamidimukkala village at Krishna District where he performed miracles by converting the paddy grown in the field into gold by just sprinkling water with Bhasma and the name of the village goes by that name, even today. He is also stated to have stayed at Palkurki village and hence known as Palakurti Viswaradhya. The descendents of Viswaradhya are known under the sur name of Ivaturi. He has written such great books Chaturvedasaram, Vrushabhadhipa Satakam, Basavarajeeyam and propagated Saiva Dharmas and having number of disciples.

(3) Vemanaradhya is resident of Belideva village. His father's name is Mallikharjuna and his Deeksha guru is Tripurantakeswara. He was born from Srisaila Mallikharjuna Lingam. He was the guru of Vishnudeva Bhupala from whom he obtained Belideva Agraharam, etc. His wife's name is Sarvani and his disciples are Jyothirnadha, Bheemanaradhya, Ghantaradhya, etc. He brought back to life the animals killed in the Yajnas by just sprinkling water with Bhasma on them. He brought back to life the king who was bitten by a serpant by sprinkling the "Pada Theertham" of Maheswara. He is of Kaundinyasa Gotram. His descendants are known under the sur name of Mulugu. He was also known as Vemaradhya. The great Saiva scholar Mallikharjuna Panditaradhya performed "Guru Pattabhishekam" to him for carrying out Saiva Mata Pracharam. His son's name is Sundareswara, who lived in South at Madura in the 12th century AD.

The three great Srouta Saiva Scholars popularly called as Panditatriam, who propagated Srouta Saiva Siddhanta are - Sripati Panditaradhya, Sivalenka Manchena Panditaradhya and Mallikharjuna Panditaradhya.

(1) Sripati Panditaradhya is also known as Srikara Bhashyakarta. His father's name is Mallikharjuna and mother's name is Bhramarambadevi. He stayed at Srisailam. He is reported to have performed miracles by tying "Agni" in his "Angavastram" to the "Semivruksham" in the premises of the present Kanakadurga temple, at Vijayawada, which fact is also mentioned in the British Archeology records. There is an edict or "Silasasasnam" here confirming this miracle. He was the teacher to Ananta Bhupala, who was the Commander in Chief of King Vikramaditya. He belongs to 11th century AD according to an edict in Siva temple at Draksharamam, installed by Chakradanda Raja, the son-in-law of Vikramaditya.

(2) Sivalenka Manchena Panditaradhya is said to have been born at Badari Kedaram, near Gowri Kedaram. Upamanyu Maharshi is said to have given Sambhava Deeksha to him. He is of Salankayana Gotram. His grandfather's name is Somasambhu in Gowda Desam, who was said to be the Incharge of Saivacharya Matham also known as Golaki Matham there. He is also known as Manchena Panditha bearing the sur name Sivalenka and his descendants go under that name today. He stayed for a number of years at Srikalahasti, where he did penance in 11th century AD. He is reported to have defeated Bowdha and Jaina Matacharyas. He is reported to have directed Madhava in Varanasi to prostrate before Visweswara. He was praised as "Kasi Viswesa Nikata Matayithwa Hatadwayim Bhabanja Vaishnavasthya Vande Manchana Panditham".

(3) Mallikharjuna Panditaradhya stayed in Daksharamam, East Godavari District, Andhra Pradesh and his father's name is Bhimana Panditha and mother Gowaramba. He belongs to Gowthama Gotram. He is Ishta Lingadhari and was known as Triloka Guru. He was the teacher to all the four varnas or Chaturvarna Gurutwam. He is reported to have challenged and defeated the Buddists in Mata Charchas and installed "Sivaparamyam". He stated that there is nothing else above Siva. He is reported to have removed his eyes number of times and each time his eyes returned to the same place by Sivanugraham. He was the author of Sivatatwasaram, a poetical work in Telugu, Kanda metre containing exceprts from Nilakanta Bhashyam, eulogizing Srouta Saiva Siddhanta in simple language. He was also the author of "Lingodbhava Devagadya" and "Amareswara Sathakam". He lived in the 12th century AD. He is stated to have performed miracles by restoring the feet of the Vellagonda Mahadevaradhya, who cut his feet by his own sword for accidentally touching the vessels used for Sivapuja. There is a Silasasanam or edict at Chandavolu or Chandole in Guntur District, which was at that time ruled by Velanati kings, who are all Buddhists and who were defeated by the Acharya. He eloquently praised Pasupata Vratam also called as Athyasramam, Pasupatam, Sambhavam, Sirovratam and Lingadharana Deeksha, in his book Sivatatwasaram, the earliest work and master-piece in Telugu language and literature propagating Sivadwaita philosophy.