The actor has been promoting the film on his own, even without the star cast being present on the set.
Filmmaker Kunal Kohli took to Twitter to talk about how this act reflects the true friendship between Salman and Aamir Khan who plays the lead role in 'Dhoom 3'.
"Never seen a star promote another's film so much, without the other being present. Salman Khan true dosti nibhayi (you are a true friend) to Aamir Khan," Kohli posted on the micro-blogging site on Wednesday.
Set to release on Friday, the Yash Raj Films' production also stars Abhishek Bachchan, Katrina Kaif and Uday Chopra.