The 'Shahenshah of Bollywood', Amitabh Bachchan turned 75 today and the warm wishes are pouring in from the film fraternity. Host of celebrities, including Karan Johar, Kajal Aggarwal, Sonali Bendre, Ayushmann Khurrana and others, wished love and good health to the megastar on his birthday. Also the social media has been lit up with endearing wishes and messages. To mark the event, #Happy75thBirthdayABSir is trending on the social media. For his exceptional contribution to the film industry, Big B has been honoured with many prestigious awards, including Padma Vibhushan and the Knight of the Legion of Honour by France. Big B has given many hits, including 'Deewar' , 'Zanjeer', 'Sholay', 'Don', 'Black', 'Sarkar', 'Agneepath', 'Paa' and 'Shamitabh' to name a few.