Bollywood's dainty damsel Katrina Kaif is celebrating her 31st birthday today, though there has been many speculations about Kat to spend or not to spend her birthday with her alleged beau Ranbir Kapoor, who is presently busy shooting in France with his ex-girlfriend Deepika Padukone for Imtiaz Ali's next.

Apparently, the twitter was taken by a storm today as it overflowed with birthday messages and wishes by Kat's fans, now the most interesting bit was that there was only one message from the Film Industry and that was of 'Deepika Padukone', yes the same leggy lass because of whom there were speculation that Kat considering not to visit alleged beau on her birthday. The two contemporaries have never been seen getting along or bonding in public ever before!

We wonder what made Deepika tweet on Katrina's birthday keeping in mind that Katrina is not on any of the social networking sites, hence she wouldn't have received Deepika's wishes anyway, still guessing what was on Deeps mind!