Passionate about all genres of music, Raman loves to collaborate with artists across musical languages. He has previously collaborated with Irish, Welsh, Spanish, West African, Jazz, Blues, Flamenco, and Japanese (Koto) musicians. Some of his collaborations include world musicians like Glen Velez (Grammy Winner), sax wizard Charlie Mariano, Khakatay African Ensemble, Flamenco Guitarist Pepe Habechuela, Louis Banks, Karl Peters, Ranjit Barot, Dr. L. Subramaniam, Jamey Haddad and others. He has also collaborated with musicians from South and North India including Dr. Balamurali Krishna, Guru Dr. N. Ramani, Mandolin Shrinivas, Selvaganesh, Tabla Maestro Anindo Chatterji, and Pundit Vinayak Torvi. 

In addition to touring with the Raman Kalyan Trio, Raman frequently presents Jugalbandis with various musicians from India and the US, and gives solo performances around the world.