Amrita Rao made her debut with 'Ab Ke Baras' (2002), directed by Raj Kanwar. The film also launched Arya Babbar. Her more notable films came later - 'Ishq Vishk' (2003) was her breakthrough, 'Main Hoon Na' (2004) and 'Vivah' (2006) were significant successes. The question asks about her debut, which is indeed 'Ab Ke Baras'.