"The idea behind the poster is to project a thought of enough of boys... the men are here, real power comes from real men," Varma said in a statement.
The poster shows Sanjay Dutt, Amitabh Bachchan and Rana Daggubati in rugged, action avatar and promises viewers with never-seen-before action and drama.
The film tells the story of a terrifying power struggle within the police department. It will release May 18.
Talking about the characters, Varma said: "The character Sarjeroa played by Mr. Bachchan represents a Machiavellian character whose power lies in his manipulation and deception. The character Mahadev played by Sanjay Dutt represents an ultra dynamic character whose power lies in his dual personality which he very successfully hides.
"The character Shivnarayan played by Rana Daggubati represents a shoot first and talk later kind of a character, whose power lies in obedience to people whom he respects!"