Fastest century,double century,triple century in the cricket history

Test Cricket

Fastest century
- Vivian Richards (56 balls)
Fastest double century
-Nathan Astle (153 balls)
Fastest Triple century
-Virendra Sehwag (278 balls)
Fastest 400
-Brian Lara (582 balls)
One day international

Fastest century
-Shahid Afridi (37 balls)
Fastest double century
-Virendra Sehwag (140 balls)

T-20 international

Fastest half century
-Yuvraj Singh (12 balls)
Fastest century
-Richard levi (45 balls)