India, June 17 -- Bollywood director and producer Karan Johar is one of Alia Bhatt's biggest cheerleaders, and as the makers unveiled the trailer of her upcoming film Alpha on Wednesday, he once again took to social media to show his support for the actor and her new project.

Karan shared Alpha's trailer on his Instagram Story and wrote, ""Get. Set. GO!!!! #ALPHA.This rock and roll actioner screams GIRLPOWER in the best way! @aliaabhatt and @sharvari are on a mission to Block a Buster!"

He also praised Bobby Deol and Anil Kapoor, who play pivotal roles in the film. He added, "OG energy with @anilskapoor and @iambobbydeol ! Shiv Rawail makes his bada screen debut with a BANG! Pave the way @yrf! You are the mega creator of this mazedaar u...