The actor will use the site to share updates with his fans, giving them opportunities to connect with the star through his Vog, or voice blogging service.
Jessica Hines, author of Looking for the Big B: Bollywood, Bachchan and Me, told Digital Spy: "The website is now up and live. 'Bachchan Bol' is the only official Amitabh website."
Fans of the actor-turned-TV host also have the opportunity to potentially appear in the audience of Bachchan's current series of Kaun Banega Crorepati.
"Big B is having a great time on KBC meeting contestants and hearing their stories and invites you to have the chance to be in the audience. Reply to this post with your request and we'll pass it onto the big man himself," the website detailed.
Bachchan recently accused Digital Spy of "artistic vulgarity", when it was suggested in an interview that his costumes in Bbuddah Hoga Tera Baap were "kitsch".
The Indian film actor currently stars in controversial Prakash Jha project Aarakshan.