An A-grade artist of All India Radio and Doordarshan, Sunil has performed alongside musicians like Padmabhushan Sangeetha Kalanidhi T. VSankaranarayanan, Padmasri Neyyattinkara Vasudevan, Padmasri Prof. Parassala Ponnammal, Madhurai G.S. Mony, Prof. Mavelikkara Prabhakara Varma, Dr. K. Omanakutty, Prof. K. Venktaramanan, Dr. S. Sowmya, Kunnakkudi Balamuralikrishna, Dr. Sreevalsan J. Menon, Sankaran Namboothiri, Thiruvengadu Jayaraman, Sharreth, M. Jayachandran, Balabhaskar and more.

Resounding Mridangam, the first book authored by Sunil, explores the nuances of Mridangam, a versatile South Indian drum.

The book is a beautiful journey in time and history. It is designed for a wider readership comprising music students as their academic source at universities across the globe, performing musicians, followers of Indian & Western classical music, and anyone who wishes to gain interdisciplinary knowledge in music