Aamir Khan officially joined Twitter Thursday and got 47,019 fans in just two hours, surpassing even Amitabh Bachchan.

While Big B, who convinced his young colleague to join the social networking site, got 37,500 followers on his first day of tweeting, Aamir seems set to overtake him.

Aamir, 45, sent his first tweet last night, "Testing: Aamir".

This morning he joined Twitter officially and said in his first message: "Bhala gardish falak ki chain deti hai kise Insha, ganimat hai ke hum surat yahan do-chaar baithey hain. Esp for you sir. Love. Thanks for the warm welcome guys. Love. Aamir."

Amitabh had persuaded Aamir to join Twitter when they met over a casual dinner in London some time back. He even taught him how to send tweets through phone. After much persuasion, Aamir finally agreed.

Amitabh welcomed him saying, "Thank you Aamir... You give more due than I deserve ... Happy Tweeting ...."