Consonants with a nukta (dot) under them (mainly for Urdu
hindi/devanagari):
k with a dot: q
kh with a dot: K
g with a dot: G
j with a dot: z
p with a dot: f
D with a dot: .D
Dh with a dot: .Dh
Specials/Accents:
Anusvara: .n, M (dot on top of previous askhar)
Avagraha: .a (S like symbol basically to replace a after
o)
Ardhachandra: .c (for vowel sound as in cat or talk)
Chandra-Bindu: .N (chandra-bindu on top of previous akshar)
Halant: .h (to get half-form of the consonant - no vowel)
Ra ligature: .r (top curve as in ii to get r sound, half
r)
(u{dhva}.r put after the intended consonant, e.g. urdhva)
Visargha: H (visargha - looks like a colon character).