Legendary actor Amitabh Bachchan constantly finds innovative ways to engage his fans and followers across all social media platforms. Recently, he announced a new activity called #BachchanBol, where every Wednesday, the actor will be posting fun facts and interesting trivia, that will be updated simultaneously on his Facebook and Twitter page. In the first week, the actor posted details about how the art of navigation was born in the river Sindhu, more than 6000 years ago. “In fact, the very word Navigation is derived from the Sanskrit word ‘NAVGATIH’,” he tweeted. Quite an amazing concept, we must say.