Siva refutes rumours of clashes with Dhanush

If grapevine is to be believed then it was quite widespread that there is a split between south’s pin-up boy  Dhanush and Sivakarthikeyan in lieu of which Siva rebuffed to be present at Dhanush's birthday party.

source: kollywoodtoday.net

The actor elucidates that, "I was very much a part of the party" further he also adds, "The party was supposed to start at 10 pm and I was at the venue by 9.45 pm itself. I stayed until the end — which was at 4 am. I think there's so much speculation because I'm not in any of the photos."

Siva believes that there is no reason that he would let the achievement of the movie to come between the two of them. He also said, "It has been 14 years since Dhanush came to this industry. The things that he has experienced, the movies he's done... they are on a different plane altogether. BO figures aside, the name and fame he has earned is much bigger than mine. There is no way Dhanush and I will ever be equal."