"Mirzya", inspired by the popular folklore Mirza-Sahiban, is directed by Rakeysh Omprakash Mehra and stars debutant Saiyami Kher, niece of Tanvi Azmi, opposite Harshvardhan.
"Congratulations Mehra! The film looks visually stunning. Harsh looks terrific as Mirzya, and Saiyami Kher looks beautiful. Good luck to the entire team. Love. A," Aamir posted on Twitter.
Aping his "No Entry" co-star Anil's style, Salman wrote, "Welcome @HarshKapoor_ Jhakaassss.."
While actress-producer Dia Mirza feels "Mirzya" a dream start for the two youngsters.
The official trailer, launched last evening, gives a glimpse of the intense chemistry between the two actors.
The action-romance will hit theatres on October 7.