"Four million and counting...my Instagram family continues to grow. Thank you all for the love! This is...because you," the "Mary Kom" actor tweeted.
The actress, who made her debut in Bollywood with 2003 film "The Hero: Love Story of a Spy", also shared a photograph in which her face is superimposed on the names of her followers.
The "Gunday" actress is an avid user of social media through which she stays connected with her fans and well-wishers.
Priyanka was last seen in "Dil Dhadakne Do", and is caught up with her international project "Quantico".
On the home turf, she is prepping up for Sanjay Leela Bhansali's "Bajirao Mastani", in which she will be seen essaying the role of Kashibai, Bajirao's first wife. The film is scheduled to release on December 18.
