'Gour Hari Dastaan' follows the life of Gour Hari Das (played by Vinay Pathak), a former freedom fighter who has been fighting for decades to obtain an official certificate acknowledging his participation in the Indian independence movement. Despite his unwavering determination and countless efforts, Das faces skepticism, indifference, and red tape from government officials who question his credibility. As the story unfolds, the film explores the impact of Das's quest on his personal life and relationships.