Salman had earlier indicated that he will not be able to devote time to celebrate as he would be concentrating on his physique for his role in the upcoming sports drama film 'Sultan'.
Actress Sonakshi Sinha, who had made her Bollywood debut with Salman in 'Dabangg' and believed to be close to the Khan clan, revealed that his family has planned "something special" to mark the occasion.
"His family has made, done something special for him. I cannot say much as it's a surprise. I am glad I got to be part of that surprise," Sonakshi told PTI today. During an interview at the time of 'Prem Ratan Dhan Payo', Salman had said, "This year I cannot afford. I would be training only. I cannot afford to have luxury (to celebrate) birthday and all. I will be highly strong. There will be lots of stuff to write this year".
Professionally, the year has been a major success for the star as both his on-screen outings 'Bajrangi Bhaijaan' and 'Prem Ratan Dhan Payo' were massive hits.
While being exonerated by Bombay High Court in the 2002 hit-and-run case has been a relief for the actor. 2015 also brought controversy for Salman.
The 'Dabangg' star posted a series of tweets suggesting 1993 Mumbai serial blasts convict Yakub Memon was innocent and should not be hanged for the acts of his brother Tiger. The actor apologised after his comments evoked protests.