 For over a decade, Harikumaran has also been making Kathakali costumes (koppu), sometimes in an innovative way, and also experimenting with its make-up (chutti).He also delivers talks at seminars on Kathakali.As of 2008 he is principal of Gandhi Seva Sadan (Sadanam Kathakali Akademi), he is basically an actor-dancer of Kathakali, but also sings for it besides writing storyplays for the classical dance-drama.