New Delhi, Mar 6 (ANI): After a pause of three years, when Karan Johar took the director's chair in ' Ae Dil Hai Mushkil,' there had to be glittering cameos!Other than Aishwarya Rai-Bachchan, Anushka Sharma and Ranbir Kapoor, who were roped in as the leads for the movie, the 'Student of the Year' helmer's favourite dulhania, Kajol has also joined the cast but will be seen for a short while.The actress who has always surprised her fans by giving special appearances in various films is joining the long list of cameo along with Fawad Khan, Imran Abbas and Saif Ali Khan.Now, this is not unusual for a superstitious director like Karan to rope in Kajol, maybe he thinks of Kajol as his lucky charm.It is said that the 41-year-old actress will play a small but pivotal role in the film which is slated to release on October 28 this year.