Amitabh Bachchan flagged off the 'Hot Seat Aapke Shehar' Van as part of promotions of his upcoming TV show 'Kaun Banega Crorepati 7' in Mumbai. The veteran superstar explained that the van will be stationed in certain cities and people will get a chance to experience a feel of the real hot seat and even win by playing the quiz show in the van. Big B then condemned the fake video on the net that wrongly shows him as singing praises for Narendra Modi and congratulated Salman Khan for completing 25 years in the industry. Don't miss!