The 48-year-old actor, who has beaten his competitors including Salman Khan (5,636,870) and Aamir Khan (5,105,283) on the micro-blogging site, thanked his fans for their love and support.
"Thanks for the 6 million. Our love goes beyond numbers. Wish you all happiness beyond count and love beyond measure," Shah Rukh posted.
Followed by people like Amitabh Bachchan, Sachin Tendulkar, Priyanka Chopra, Karan Johar among other, the 'Chennai Express' star is one of the most frequent users of the popular social networking site.
Shah Rukh, who joined Twitter in 2010, has made 6,414 tweets so far.