Description :

It is used to allocate a double sound to the particular letter that it is assigned to.

  
Shape :

Crescent moon                    (Draw)

Position :  Written above and between two letters.
 Sound :  Stresses the sound of the letter that follows it in the  word.
Examples :

kapp (cup) = ਕੱਪ     

aagg (fire) = ਅੱਗ