The movie features names like Konkona Sen Sharma, Rajit Kapur, Vinay Pathak, Ranvir Shorey, Asrani, Saurabh Shukla, Vikram Gokhale and Tannishtha Chatterjee.
While he was happy to have the "biggest team of award winners ever put together in a film", Mahadevan said that the expectation of the team from the production house and him as a director was his biggest concern.
"They wouldn't accept unprofessionalism as they were trained in a particular way," he added.
To keep it all in check and avoid any disappointments, the director and the crew members worked hard on maintaining minute details like sending them call sheets as early as 20 days in advance.
"Which scene to be done before break time, which to be shot post. We also conducted workshop. I had to make sure the quality of production matched their expectation since people like Tannishtha come from a Hollywood background as well, and for them these eye for details make more impact that other issues," Mahadevan in a statement.
The story of the film is based on the story of freedom fighter Gour Hari Das.
Produced by Bindiya and Sachin Khanolkar, the biopic encompasses the past in a stinging modern-day satire on free India through the eyes of Das.
The film is scheduled to release on August 14, the eve of Independence Day.