Description:

 The third matra of the Gurmukhi script is Sihaaree.

Shape :

reaches to full length of the letter.             (Draw) 
Position :  Written before the letter.
 Sound :  Same as 'i' in hill , e in before etc.
Examples :
 ik (one) = ieSk
 sir (head) = isr
 hirn (deer) = ihrn
 kitaab (book) = ikqwb
Exceptions : Sihaaree cannot be used with  a &  E.
 Muharni :

ie is ih ik iK ig iG iZ ic iC ij iJ iz it iT if iF ix iq iQ id iD in ip iP ib iB im iX ir il iv iV isL iKL igL ijL iPL ilL