He is a graduate from D.B College Sasthamcotta, after graduating from D.B collage he joined the ‘Brahmavidya Acharya’ course which is of seven-year in 1985 at the Sivagiri Mutt Varkala.
His first yoga lesson was from a swami Samprasadanda, a monk from Sree Ramakrishna mission,
Sunil’s yoga mentor inspired him to complete the Sivananda TeacherTraining Course at Neyyar Dam in 1995. During the same year, Sunil also completed the Sadhana Intensive course from the same ashram. In 1996 he completed his Advanced Teacher’s Training from Sivananda ashram. After the A.T.T.C. he joined Bangalore Vivekananda Kendra for further study of yoga and yoga therapy for a period of one year.
Soon after Sunil completed his yoga courses he started to teach yoga at Sree Narayana Guru
Viswa Samskara Bhavan in Trivandrum.