1. Throwing instead of bowling. (See notes below)
2. Ball not released by bowler after bowling action.
3. If bowler changes his mode of delivery without notifying the umpire.
4. Underarm bowling without agreement before the match.
Bowler?s Foot Position at Delivery
5. Back foot touching the return crease.
6. Back foot landing outside the return crease.
7. No part of the front foot, whether grounded or raised, is behind the
8. Any short pitched ball passing above head height (standing) of the
9. Slow full toss ball passing above shoulder height (standing) of the
10. Fast full toss ball passing above waist height (standing) of the
Fielding Position at Delivery
11. More than two fielders excluding wicket keeper behind the popping
crease on the on side.
12. After the delivery and before the ball either touching / passing
the bat or touching the batsman, a fielder except the bowler and wicket
keeper, comes on the pitch, landed or in air.
13. After the delivery and before the ball either touching / passing
the bat or touching the batsman, a wicket keeper comes in front of the
striker's end wicket.
14. Ball bounces more than twice or rolls along the ground before reaching
the popping crease.
15. Ball comes to a stop in front of the striker's wicket without touching
the bat or batsman.
16. No ball and Wide ball in the same delivery is No Ball.
17. Bowler throws towards the striker's end before entering delivery
stride which is not an attempt to run out the batsman.
The bowler is permitted, before entering his delivery stride, to attempt
to run out the non-striker, however, the ball shall not count in the over.
If batsmen attempt to steal a run during the bowler's run up and the
bowler does not attempt to run out either batsmen, the fielding side is
awarded five penalty runs.
Bowling vs. Throwing
In throwing significant amount of force is gained from elbow by straightening
(extending) from a flexed position.
In bowling, the bowler must not gain throwing force from the elbow joint
of the bowling arm in the delivery swing. Once the bowler's arm has reached
the level of the shoulder in the delivery swing, the elbow joint must
not be straightened partially or completely from that point until the
ball has left the hand. This means that if the elbow is flexed to some
extent in the delivery swing, it must not be extended any further. Interesting
to note that the elbow shortening (flexion) is allowed.