He appears to have now excluded the offending sites from the 984 accounts he follows.
The 72-year-old actor is India's most followed celebrity on social media with a Twitter community that's over 16.5 million strong. He's also one Bollywood's most active users of Twitter and Facebook and also runs his own blog. Big B has been on Twitter since May 2010.
Last seen in Piku with Deepika Padukone, Amitabh Bachchan has Wazir with Farhan Akhtar coming up and will also make a special appearance in director R Balki's Ki and Ka, currently shooting.