Chris Gayle (west indies)
Ahmed Shehzad was the first Pakistani batsman to score a century in T20 Internationals. He scored against Bangladesh in T20 World Cup 2014.
chris gayle
First Indian batsman to score International T20 century is Suresh Raina and scored against South Africa.
Deandra dottin
Deandra Dottin
belinda clark, she score 219 not out against denmark in 1997
Chris Gayle, in international T20
Chris Gayle of West Indies scored first century in world cup t20. He scored 117 against South Africa.
Branden McCullam
Brendon Mcullum
Suresh Raina
Suresh Raina is the only one Indian to have scored a century in ICC t20 world championship.