Swamiji was born in 1962 in Gujarat state. His spiritual pursuit started at a young age which finally led him to Vedanta. After completing his education in engineering, he joined a three year course at Baroda in 1986 under Swami Brahmatmananda, a student of Pujya Swami Dayananda Saraswati. He got his brahmacarya-dīkṣā in 1989 and later continued his studies with Swami Visharadananaji at Swami Dayananda Ashram at Rishikesh. During this period, he was privileged to study under Pujya Swamiji.
He was initiated into sannyasa in 1997 by Pujya Swami and given the name Swami Sadatmananda.
Swamiji was the ācārya at Arsha Vidya Kendra, Bangalore from 1994 to April 2014. The center was later registered as Arsha Vidya Kendra Trust with Pujya Swamiji as the paramount trustee and Swamiji as the chairman. He conducted classes at the Kendra on Upaniṣads,Brahmasūtra, Bhagavadgītā, Purāṇa, Sanskrit and other vedantic texts. He also conducted weekly classes for children and young adults.
He initiated and motivated various social activities by the Kendra. The Kendra grew considerably during his tenure of 20 years and a lot of people were benefited from his teaching. His love for studying the śāstra and understanding it in-depth, is a quality that all his students value and strive to imbibe.
During 2011 to 2013, under invitation from the Mahamandaleswar of Kailash Ashram, Rishikesh, he annually visited Rishikesh and taught Upaniṣads and other vedantic texts there, in Hindi with bhāṣyam and ṭīkā.
In 2013, Pujya Swamiji suggested that he conduct the next course at Coimbatore. Accordingly, in May 2014, under the guidance of Pujya Swamiji, a three month and a three year residential course in Vedanta and Sanskrit was started at Arsha Vidya Gurukulam, Anaikatti, Coimbatore with swamiji as the chief ācārya. Swamiji conducts daily classes in upaniṣads, bhagavad gītā and other vedantic texts. The course was completed in 2017.
After the completion of the long term course, he conducted some retreats and regular classes for the ashramites on bṛhadāraṇyaka-upaniṣad bhāṣyam for about two years.
Later he started a 108 day residential course on tattvabodha and bhagavad gītā which was concluded on 18th December 2019.
Presently he conducts a two year residential course on Vedanta which will be concluded in December 2021.
Swamiji is a very versatile teacher who can reach out to a wide variety of audience both young and old. He is well-versed in Sanskrit and applies it in the study of bhāṣyam. He is committed to convey the message of the śāstra to his students with depth and clarity. His teaching style is simple, clear with a lot of examples. He can teach with ease in English, his native Gujarati, or in Hindi. He is warm, accessible and ready to help. He is very caring of the students and is a great inspiration to them in living a life in keeping with śāstra.