The 40-year-old plays an Anti-Terrorism Squad (ATS) officer in the film, directed by Bejoy Nambiar.
"There was a time when action was called 'Thrills' in film titles and I'm thrilled to be doing some nowadays. #wazir," Farhan tweeted Saturday night.
He also shared that the teaser of the film, which also stars Amitabh Bachchan, will release along with Aamir Khan-starrer "PK".
"Heads up..! Get ready for our first move... #wazir teaser releases 19th December with PK. Enjoy," he tweeted.
"Wazir" has been written and produced by Vidhu Vinod Chopra, who has also produced "PK".