Deepika-Siddharth's relationship revealed

Although Deepika Padukone and Siddharth Mallya are tight-lipped about their relationship status, someone close to them has insinuated that they are a couple. We are talking about England cricketer, Kevin Pietersen. 

The feisty batsman recently wrote on a social networking site, "Just had a lovely lunch with @sidharthamallya & his girlfriend @deepikapadukone.. Thanks for picking up the bill Deepika.. NOT!! Haha"

For the uninitiated, Kevin Pietersen also plays for the IPL team, Bangalore Royal Challengers, which is owned by the Mallyas. Currently, he's playing the Cricket World Cup in the Indian subcontinent. 

Deepika Padukone and Siddharth Mallya have been spotted together at various public events. But they have never made their relationship official.