Thavathiru Gyanagurunathar Vadhavooradigal (Divakar ayya) was born on 26/8/1979 at vellore district. He is from a telugu Brahmin family from his father tradition – Thiruvannamalai. He is the eldest son of Arunkumar sharma - kalyanee Arunkumar. He has completed his schooling in Kodambakkam higher secondary school [SSLC]. At the right age he took the “upanayanam” [Hindu ritual of initiation.] from childhood he has the spirit of writing devotional songs and he is very much interested in spirituality and his grandma Sakunthala devi was a great devotee of goddess parvathi [shakthi upasakhi] who gave dheeksha to him, and she was his first guru , then ayya was introduced to saivism by a staunch devotees of lord shiva came from Srilanka. As per their guidance in the year 2003 he got married to D.Bhuvaneswari and his marriage was conducted fully according to tamil tradition with the witness of thirumarai [ Sacred hymns about Lord shiva]. In the year 2005 they were blessed with a girl child D.Thayuma.
In the year 2010 during the Occasion of “Maha Karthigai deepam festival ,his intuition paved the way towards ,Saint Manikavasagar Temple at Adi annamalai ,which gave him a mystical experience. As a result of that dheeksha experience, he realised that his lifetime ambition is to convey the glory of the holy book Thiruvasagam and about his guru Manikkavasagar to the world. His Vision was completely focused to spread uncondidional love of lord shiva in his own way of “Vadhavoorar Vazhi - Thiruvasaga Neri” and this has become his purpose of life.
During the year 2011 he started his first Music discourse entitled “Thiruvasagam & Manivasagar” on Aani magam gurupooja held at Chennai-Padi thiruvalidhayam temple of 7th century , and he with at most bliss depicted the life history of Manivasagar with some highlighted thiruvasagam songs. The Musical discourse composed by him brought tears in the eyes of all present there. By the divine voice and Verses of sivalogam ayya everyone were astonished and immensely merged with the soulful feeling of manivasagar. Subsequently by the request of devotees on the same day an organisation was started and named as “SIVALOGAM” from the holy book thiruvasagam by the grace of Lord Shiva.The name sivalogam was registered as Sivalogam Arrakkattalai in Dharmamigu Chennai (porur) and many charitable activities and rituals have been started as the foundation of the organisation
To worship the 63 Nayanmar’s, sivalogam has selected 63 Arankavalars together as a family to celebrate the special gurupoojas accordingly.
In the year 2018, by knowing the fragrance of the deep devotion of sivalogam ayya towards manivasagar and thiruvasagam , A 600 Years old tradional mutt Mounathirumadam at chidambaram and its 8th highness “Sri-la-sri Sundaramoorthy Swamigal “ has recognised sivalogam ayya with Acharya abhishegam and entitled with a dheeksha name as “Thavathiru Vadhavooradigal". Blessings were given to carry out the Spiritual development of Dharumamigu Chennai sivalogathirumadam.
The world premiere of shanmugakavacham “MANTRA MEETS CLASSIC” has been performed in a choral Acappella style by the chamber choir of Europe Conducted by Mr Nichol Matt and composed by Mr B Ganesh Kumar where Sivalogam ayya was invited as Linguistic trainer to teach and to make them understand tamil sacred verses of smt Pamban swamigal. Thiruvasagam was also trained to the chamber choir of Europe by sivalogam ayya in the year 2015 @ kurhaus in Wiesbaden Germany.
In the year 2016, Ulagatamil Araichi Niruvanam conducted thirumandira Manadu at the Malaya university.
Sivalogam ayya was invited as the chief Guest for the conference. People from Various countries participated and exposed their views about saivism and the tamil language.
Sivalogathirumadam was extended to Andaman and Nicobar Island where tamil people are interested to know more about saivism. Sivalogam ayya was invited by vetri malai Murugan temple Trustee’s to perform Thiruvasagam concert, followed by this concert lot of devotee’s are eager to know more about thiruvasagam.
Andaman sivalogathirumadam was formed at prarthrapur-Andaman. The same proceedings of the Chennai sivalogam Mutt was being followed by Andaman Sivalogam Mutt under the guidance of sivalogam ayya.In 2019, 5th year “Thiruvasaga Thiruvizha” was celebrated in a grand manner and 63 Arankavalar’s (sivalogam family) travelled by airways to enrich the event.
Sivalogam ayya’s spiritual journey has paved way for him to write numerous songs in the name of the album “Sivaloga pamalai” to show the Behind every song there is an experience, so the song connects to every soul to feel the ultimate truth. He has skilled to write songs, stories, scripts and dialogues in his own way which is very simple even for the layman to understand the truthunconditional love of lord Shiva and also to realise our own self.
As a crown of his writings he compressed the stories of 63 Nayanmars in simple two lines like Thirukkural which is entitled as “THONDAR SEER POTRI”.
In 2014 Thiruvavadudurai Aadeenam 24th gurumaha sannedhanam his highness Ambalavanadesiga paramacharya swamigal has recognised and awarded the title “THIRUVASAGA PITHAR”.
Sivalogam Ayya was honoured with awards in recognition of his contribution in the field of Spirituality by various spiritual organisations.