As a musician he has performed and recorded with artists such as Otomo Yoshihide, Senyawa, Eiko Ishibashi, Hada Benedito Mateo, Mitsuaki Matsumoto, Yuen Chee Wai, Dharma, DJ Sniff, Toshio Kajiwara, Duncan Bruce, Hilary Jeffery, Hayden Chisholm etc. Seljuk has also worked with many theatre practitioners & performance artists in India - making music for Theatre as well as curating shows & workshops with actors and performers from around India.

Seljuk Rustum is a Kochi-based contemporary arts practitioner originally from Kannur, Kerala. His work spans painting, music, curation, production, and sound engineering, embodying a postmodern approach that dissolves boundaries between media. He is the founder and current Creative Director of Forplay Society, an interdisciplinary performance space dedicated to experimental and independent art forms. As a musician and sound artist, Seljuk plays alto saxophone, guitar, percussion, and synthesizer, engaging in free improvisation and experimental compositions. His self-taught practice integrates elements of sound art, media art, and technology-driven performance, at times incorporating soldering, circuit bending, and prepared instruments. His sonic work extends his visual practice, blending joyful noise with naïve melodies. He also works as a sound designer and composer for Malayalam films.