Why SRK, Sanju did not attend Sall's birthday?

It was expected that Salman Khan's birthday will surly see his new friend SRK. Sanjay Dutt who is also on a small break from jail will be there as he is a very good friend of Salman. But Sanjay Dutt did not attend the party as he wanted to spend maximum time with his family. Sources say that again a controversy is being made for this special holiday that the jail is has given him. He wanted to avoid all that. SRK say sources, is out of Mumbai and therefore could not make it to his birthday. SRK has called Salman to wish him a happy birthday.