Salman Khan is upset because he couldn't attend his father's 74th birthday celebration. The star was busy shooting for his home production "Dabangg" at Wai in Satara district of Maharashtra.

"The whole family makes it a point to be together by hook or crook for our parents' birthdays. Anyway dad believes work comes first. But Salman and Arbaaz are very unhappy about the situation," Sohail, who was the only one to attend the bash, said.

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