Brahmachari Sundar Chaitanya completed the two-year residential Vedanta Course (13th batch, 2005-2007) under the guidance of Pujya Guruji Swami Tejomayananda at Sandeepany Sadhanalaya, Powai, Mumbai. From 2007 onwards, he has been serving Chinmaya Mission activities and programs such as Vedanta classes for adults and senior citizens, Yuva Kendra classes for CHYKs, Balavihars for children, Jnana-yajnas, Gita chanting competitions in Tamil Nadu and Chinmaya Vision Programme (CVP) of CCMT’s Chinmaya Education Cell (CEC). He also served at Mumbai for a year in assisting Swamini Amitananda to proof-read and edit various books and establish the recent guidelines of the Chinmaya Prakashan, the Publication wing of CCMT.

In October 2013, he joined the CIF Publications team under the leadership of Swami Advayananda and assisted in editing various books including ‘Brahmasutra Chatussutri’, ‘Advaitaamrtam’, ‘Naishkarmyasiddhi’ and ‘Sri Ramanuja’. He has actively participated in preparation of the annual CIF Newsletters, the Upanishad Course material, and the book titled ‘LEEP’ (Life Empowerment and Enrichment Program – based on the Bhagavad Gita for college students) published by Central Chinmaya Mission Trust (CCMT).