Leaving behind all other actors in the film industry, megastar Amitabh Bachchan has been ranked number one on Twitter, in terms of both popularity and activity.

In an analytic report of the most popular Bollywood stars on the social networking site, Big B with 12 million followers on Twitter topped the popularity list. Digital services provider 'TO THE NEW' rated various Bollywood celebrities on the basis of their popularity and their engagement with fans on Twitter.

The rank is based on an algorithm which combines the scores received for each measure i.e. total number of followers, absolute increase in followers and tweets per day. 72-year-old Bachchan is followed by superstar Shah Rukh Khan (10.4 million followers) at number two and Abhishek Bachchan (5.4 million) at the third position. Hrithik Roshan (7.7 million), Aamir Khan (10.1 million) and Salman Khan (9.5 million) have also made it to the list of top 10 most popular Bollywood actors.