"I remember one day we went to watch Kaakha Kaakha. Sukku looked at me and said, "Ye film karo, Bhai," John revealed on Not Just Supper Stars.
"You need to stop going to something called a 'gym' and eat regular food like a normal human being," said John while talking about his transformation
The movie is based on India’s epoch-making and literally earth-shattering feat of conducting a nuclear test in 1998 in Rajasthan’s Pokhran area.
Diana plays the intelligence officer, Captain Ambalika Bandopadhyay in John Abraham-starrer film Parmanu.