From http://gaprocks.blogspot.com/2005/07/chandramukhi-and-superstar.html
As far as the ad world is concerned, Amitabh Bachchan who gets 4 crores is still Number One. Ad agencies are willing to dish out double the amount Amitabh gets, if Rajini were to do an ad, say sources in the ad field.
The last point mentioned is yet another reason why superstar absolutely rocks. Believe it or not, this man, who is the biggest superstar in the whole of Tamil Nadu (with a population of 6.5 crores as ARR claims in Anbe Aaruyire ;)), has not endorsed any commercial product to date!!! There is NO OTHER INDIAN FILM SUPERSTAR who has this unique distinction!