I have uploaded the VRI Devanagari fonts to the files section. The
conjunct m character at (0157) seems to be duplicated at (0253). There is
no sign of MMA in the Unicode Charts. Also missing are MBA, MPA, etc. I'm
unsure why this is. Perhaps someone with better knowledge of the subject
could propose these characters to the Unicode Consortium. Clearly they
need to be defined in the standard for the benefit of Indian Pali
scholars.