The normally introvert Ajay Devgn had planned to celebrate a quiet birthday on Monday but fans of the 43-year-old superstar had other ideas. Ajay, currently in Patiala to shoot for his upcoming biggie Son Of Sardar, was overwhelmed when members of his fan club arrived at the sets with a huge, three-layer birthday cake. The coy actor is known to be averse to overt celebrations, but he didn't have the heart to turn away his fans when they paid him a visit on the set of the film with the cake.