Salman was speaking to reporters about his future projects when the news slipped out.
He said: "I am doing the 'No Entry' sequel. I am doing a film with Mahesh Manjrekar, I am doing a film with Karan Johar, I am doing a film with Aditya Chopra. I am doing 'Shuddhi. I am doing a film with Karan and that I guess is 'Shuddhi' only."
Meanwhile, on Wednesday, Karan took to Twitter to confirm the news officially.
"SHHUDDHI will star SALMAN KHAN and will release Diwali 2016.....@shhuddhimovie," Karan tweeted.
Intially, Hrithik Roshan and Kareena Kapoor were finalised as the lead pair of the film, to be directed by Karan Malhotra. But later Hrithik announced that he had pulled out of the project.
The rest of the cast of the film is yet to be finalised.