No ball
A 'no ball' is called if a bowler has over-stepped the popping crease and this is signalled by an arm raised at shoulder height.
There are several types of no ball. The most common one is the foot-fault, though having the back foot wider than the return crease would also result in a no-ball.
If a bowler bowls too many intimidating deliveries in one over, he can also be no-balled.
Three short-pitched deliveries rising above the batsman's shoulders would be the right time to call a no ball.
