Deepika, who plays the titular role in the Sanjay Leela Bhansali-directed film, has received threats from Rajput Karni Sena with one of its leaders warning her against "inciting" sentiments.
"I am in shock at reading what my dear friend is going through but in absolute awe of her strength and courage.
"Deepika you are one of the strongest women I know," Rose, who appeared alongside Deepika in the "xXx: Return of Xander Cage", tweeted.
Following the threats, the Mumbai Police has tightened Deepika's security.