In his early years, Swami Aparajitananda earned his professional degrees in Electronics and Communication Engineering. He worked in Bangalore as a lecturer in an Engineering College for five years, before resigning from the job in order to study the Indian scriptures in depth. After undergoing intense training at Sandeepany Sadhanalaya in Mumbai for two years in the Residential Vedanta Course, Swamiji joined Chinmaya Mission as a full-time Brahmachari.

In the year 2018, on Maha Shivaratri day, Swamiji was given Sannyasa Deeksha. Over the years, Pujya Swamiji has served the Mission centers in Bangalore, Mysore, Shimoga, and most recently in Mangalore. Since May 2023, Swamiji is with us here, Chinmaya Mission Chicago - Yamunotri.

Swamiji has conducted several discourses in different parts of India and in reputed institutions like the Indian Institute of Technology (IIT) in Mumbai. The depth of his understanding along with clarity in the subject is clearly visible in all his discourses. He relates well to youth and adults alike and has offered Jnana Yajnas on various Vedanta texts and topics. He is also a regular contributor to various magazines and his articles are widely appreciated by all.