In tonight’s episode, the host of the most entertaining reality show on television Mr. Amitabh Bachchan celebrates his 70th birthday on sets of Kaun Banega Crorepati amidst lots of love from the audience and the contestants. Vipul Mehta will open the episode with a birthday song made especially for the occasion. He will serenade the audience with his mesmerizing voice. After the shoot was over Vipul surprised AB by bringing in a very special birthday cake. The customized cake had Big B’s face imprinted on it. Vipul gathered all the contestants and AB cut the cake amongst a lot of applause and birthday song sung by the contestants.