Kartik moonlights as a stand up comic and performs under the name of HigherIyer.
Kartik is also known as a successful advertising person with many famous advertising campaigns to his credit.
Kartik is also the founder of a Content and IP creation studio called Potassium Iodide Entertainment Pvt Ltd.
Kartik Iyer returned to the stage to perform after fifteen years in 2019, as one of the leading characters 'Tirumala' in Girish Karnad's last play Crossing to Talikota directed by Arkjun Sajnani.