Anuja Chauhan is an Indian author and advertiser. In 2010, she resigned from the advertising agency JWT India to pursue a full-time literary career. She was the brain behind Pepsi's "Nothing official about it" campaign and advertising slogans like Pepsi's "Yeh Dil Maange More" and "Oye Bubbly". As a writer, she is best known for her bestselling, contemporary novels, The Zoya Factor and Battle For Bittora.