Here is the video of Chiranjeevi's daughter's marriage. The opinion of the couple is worth a listen.
Casteism is one of the dominant oppressive or cohesive forces of India, depending on your way of thinking. Individual acts of expression of freedom are a way forward for the country as a whole. There are alternative viewpoints touting caste "stickiness"; individual rights do come first.
The bigger concern right now seems to be that Chiranjeevi will have trouble becoming the next Chief Minister of Andhra Pradesh. This event is seen as a dent to his aura of machismo. He will lose a lot of "movie hero" votes as a result of this marriage.