The film, based on the true story of athlete Paan Singh Tomar, completed four years on Thursday. Dhulia said he is glad that the film is "still creating a buzz".
"I think it will always be remembered as the first which brought faith in biopics,` Dhulia said in a statement.
Featuring actor Irrfan Khan as the protagonist, the UTV Motion Pictures production talks about a soldier in the Indian Army, who wins a gold medal at the Indian National Games, but is forced to become a notorious bandit.
Made on a shoestring budget, `Paan Singh Tomar` premiered at the 2010 British Film Institute London Film Festival and won the Best Feature Film and Best Actor awards at the 60th National Film Awards 2012.