Gunday actor Arjun Kapoor turns 29 today and on this special day the actor got a very special surprise from his close friends and family members including sister Sonam Kapoor. Take a look at how the actor celebrated his big day. The actor also posted on his wall, "Thank you each and everyone of you...@monakapoor3 love u mom..hope u smiling ur son is 29 now..time to pretend to be mature..." Here's wishing Arjun a very Happy Birthday!

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