Ranveer Singh is as busy as a bee nowadays as he is working round the clock for his much anticipated upcoming film 'Bajirao Mastani'.

Ranveer has been working 18 hours a day for the past two weeks and also filmed an action sequence for 12 hours straight!!

"Ranveer was filming alone, Deepika Padukone, who plays his second wife Mastani, was not around. Over a dozen white horses were being prepped for action as the actor walked out of his vanity van, in full armour, bronze headgear in place." informed a source.