Karan expressed, “The first time I watched their film 'Kabhi Kabhie,' I couldn't forget that moment, that instance, because the romance and human interaction portrayed in it were things I perhaps didn't fully understand in my childhood.”
Born as Ganga Sagar Talwar in Baffa, near Abbottabad city, now Pakistan, the writer is said to have adapted the title 'Sarhadi' to carry with him the connection of the frontier province.