Aaditya Kulshreshth, popularly known as Kullu or Writer OP, is a prominent Indian stand-up comedian, actor, and writer from Bhopal. Initially trained as an engineer, he transitioned into the entertainment sector, working as a radio jockey for Radio Mirchi for three years before finding major digital success. He became a household name through his collaborations in Tanmay Bhat's viral reaction videos and his Netflix India series Keeping It Kullu. Blending relatable middle-class observations with sharp observational humor, he has performed over 200 live shows and expanding into acting with prominent film and streaming appearances.