Amitabh Bachchan, who joined Twitter some time ago, congratulated Shah Rukh Khan for having over 400,000 followers on the site.
"Congrats!! you crossed 400,000... meri gaadi thoda dheeli chal rahi hai (I'm at a slower pace at the moment)," the 67-year-old posted on his Twitter page.
Amitabh, who has become a regular on the site now, presently has 98,228 followers. While he writes on his Twitter page couple of times during the day, he also has a blog, a voice blog and a mobile blog.
As of now, he is following just five people on Twitter - Shah Rukh, son Abhishek, Sachin Tendulkar, Shammi Kapoor, and Suhel Seth.