LohitTamilRegular , 245 Glyphs
SUNDARAM1341Regular , 237 Glyphs
JanaTamilRoman , by Prof. R.K.Joshi and Rajith Kumar K.M. , 205 Glyphs
FreeSerif , by GNU , 10538 Glyphs
FreeMono , by GNU , 2251 Glyphs
We are building an exciting new Font cloud API which allows font and glyph level API access from the cloud. Stay tuned for the announcement.