Hi John,

I used this site to provide you the unicode eq.

http://jrgraphix.net/r/Unicode/0900-097F

S 0938
rR 0930
gG 095A
m 092E
P 092A
dD 0927
nN 0929

r or R will also have something to represent Palato-Guttural as shown on
wiki
http://en.wikipedia.org/wiki/Devanagari. similarly n and N will have
Palatal, as shown below.