There isn't much difference between the way "P" and "CH" are written in urdu. The words in "CH" group turn in the begaining whereas the words in "P" group do not turn.
The letters are in the following order:
P group
P
PH
B
BH
M
and CH Group
CH
CHH
JA
JH
N
P=پ پـ
CH=چ چـ
PH=پھ
CHH=چـھ
B=ب بـJ=ج جـ
Now , lets look at the difference between these two. For example , a word like "Jala" which means to remove, to abdicate. There is another word which is "Bala" which means difficulty, trouble .
Bala-بلا
Jala-جلا
BH=بھ
JH=جھ
M=مN=ن
The letters are in the following order:
P group
P
PH
B
BH
M
and CH Group
CH
CHH
JA
JH
N
P=پ پـ
CH=چ چـ
PH=پھ
CHH=چـھ
B=ب بـJ=ج جـ
Now , lets look at the difference between these two. For example , a word like "Jala" which means to remove, to abdicate. There is another word which is "Bala" which means difficulty, trouble .
Bala-بلا
Jala-جلا
BH=بھ
JH=جھ
M=مN=ن