England's Dawid Malan achieved this in 81 innings.
Two Pakistani players are third and fourth on the list
Ahmed Shehzad took 76 innings to score three centuries.
Mohammad Rizwan reached the figures in 70 innings.
The 2nd and 3rd places are occupied by the Indians.
Shubman Gill recently slammed his maiden T20I century. He has taken 52 innings to score them.
KL Rahul, who has taken 20 innings to score three tons across all formats, tops the list.