Yes, uncapped players usually take part in IPL and other T20 leagues. As a matter of fact, most franchises invest in uncapped players who portray good results in the domestic cricket. The meaning of uncapped becomes relevant to a great extent here since it provides a source of a new talent that might become future superstars. Such players are usually acquired at a cheaper price but may bring in excellent performance hence their usefulness. Most of the giant names in the field of cricket began as uncapped players in IPL before gaining international reputation as well.