As far as the current concerns about Pruithviraj, what I could understand as a frequent internet surfer are;
1. Of the people who express their feelings in social media, there are more who dislike him than like him. You may even get cornered if speak something good about him.
2. More that any Malayalam actor/actress till date, people are interested to hear and talk about Prithviraj’s personal life. His marriage has acted as a catalyst towards this mania.
3. PHA (Prithviraj Haters Association) members feel that after Puthiya Mugham’s BO success, Prithvi has started treating him as a superstar. HIs interviews that time repeatedly focused on the crowd-pulling ability a.k.a superstardom of the young actor.
4. And many more
More at http://cinemaoutlook.blogspot.com/2011/09/does-prithviraj-deserve-this.html
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