Caruso, on Twitter, welcomed Chinese singer-actor Roy Wang to the "xXx" family on Monday.
A social media user then asked: "What about Deepika Padukone. Will she be part of the film""
"Yes," replied Caruso, thereby confirming that the popular actress will be back in the action-packed franchise.
Asked if there was any update on Deepika's shooting schedule for the film, Caruso responded to a fan: "Working it out now script being scheduled."
Deepika's foray into Hollywood had created a strong buzz. In fact, last year Diesel had made his maiden visit to India as he came down to Mumbai with Caruso and the Bollywood actress to promote ""xXx: Return of Xander Cage". He was welcomed with 'desi' fanfare.
The franchise began with the 2002 film "xXx", which was followed by the 2005 entertainer "xXx: State of the Union".
The third "xXx" movie, featuring Deepika as Serena Unger, had grossed over $300 million worldwide.