The 32-year-old 'Mary Kom' star, who joined Twitter in January 2009, thanked her fans for their support on the social media.
"Thank you all for 7MillionPcManiacs... Our family is getting larger.. Your love keeps me going.." she tweeted. Priyanka, who is an avid user of social media, is the fourth most popular Indian celebrity on Twitter.
Megastar Amitabh Bachchan has 10 million followers followed by Shah Rukh Khan (9.04 million), Aamir Khan (8.46 million) and Salman Khan (8.28 million).