Usually Rajnikanth celebrates his birthdays in unknown places to avoid public visits. But this year the actor was very much happy to celebrate his birthday and had it grandly. Its because he is going to become a grandfather soon. His elder daughter Aishwarya Dhanush is expecting a baby.When we look back to his early life, we find him as a hot tempered person. He got a change after his marriage to Latha Rangachari in 1981. Rajnikanth captivated the audience with his individualistic style and dialogues . His previous filmKuselan won critical acclamations at box office and his upcoming movie Endhiran is expected to be the one of the most expensive films in Indian Film Industry. He has almost completed shooting his younger daughter Soundarya Rajinikanth’s debut directorial Sultan– The Warrior and it is slated to hit screens in April 2010.