"Priyanka has gone to Phuket with six of her friends... all girls! She will celebrate her birthday there... her schedule was planned to make sure she got the time off, " a source close to the actress told.
Though Priyanka didn't reveal where she is heading for her sojourn, she posted on micro-blogging site Twitter: "Off for my sinful holiday with my girls! Oh sooooo needed it... See you guys in paradise."
The actress, who turns 28 Sunday, is expected to be back in Mumbai July 27.
Priyanka, who won the Miss World title in 2000, made her Bollywood debut with "The Hero: Love Story of a Spy" in 2003, after which she featured in "Andaaz".
In 2004, she received critical acclaim for her performance in "Aitraaz" and later did commercial films like "Mujhse Shaadi Karogi", "Bluffmaster", "Krrish", "Don - The Chase Begins Again", and "Salaam-E-Ishq".
It was Madhur Bhandarkar's "Fashion" that brought her into the league of top-rated actresses in Bollywood, and even won her a National Award.
There has been no looking back for her ever since.
She was seen in commercial hits like "Dostana" and "Kaminey" and also featured in films like "What's Your Rashee", and "Pyaar Impossible", which didn't fare too well at the box office. Nevertheless, she has films like "Anjaana Anjaani", Vishal Bharadwaj's "Saat Khoon Maaf" and "Don 2 - The Chase Continues" in her kitty this year.