Caught out, is one of the 10 ways a batsman can be dismissed in the game of cricket. A batsman is declared out caught when a fielder catches a ball directly off the bat (on the full).
When a batsman plays a stroke at a legitimate delivery - a batsman cannot be given out caught of a no ball - and ends up being caught by one of the 11 players on the field of play, the umpire shall declare the batsman out if in his opinion the fielder had made a clean catch (not off the ground).
When a bowler picks up a catch off his own bowling the catch is referred, in the cricketing terms, as 'caught and bowled' while if the catch has been pouched by the wicket-keeper then it is referred to as 'caught behind'.
In the process of making a stroke if the ball deflects off the batsman's bat on to his pads and finds itself in the hands of a fielder, the batsman shall be declared out.
But in the event of the ball lodging itself in the batsman's pads after hitting the bat and later claimed for a catch by a fielder, then the umpire shall not uphold the appeal as the ball shall be declared a 'dead ball' the moment it lodges in the batsman's pads.
The batsman shall not be given out caught off a fielder's helmet but can be given out caught if it ricochet's off the fielders boots or any other part of his body.