The "Piku" actress wished Happy Birthday to Diesel, who turned a year older on Monday, via Instagram. She even shared a photograph of herself with "The Pacifier" star.
Deepika shared a still from her upcoming international debut film in which Diesel can be seen embracing her.
"Happy Happy Birthday to the man with the kindest most generous heart! I love you Teddy! Vin Diesel," she captioned the image.
Deepika will be seen playing the character named Serena Unger in the upcoming international film, directed by D.J. Caruso.
"xXx: The Return of Xander Cage", a sequel to the 2002 film "xXx" and 2005 film "xXx: State of the Union", also stars Ruby Rose, Samuel L. Jackson, Donnie Yen and Tony Jaa. The film is slated to release on January 20, 2017.