The corpus of sarasvati hieroglyphs makes use of graphemes and underlying sounds provided by homonyms of mleccha. For example, kamad.ha can be represented (mlecchita vikalpa) by:
1. a person in a yogic posture or in penance
2. a ficus religiosa leaf or petiole of leaf
3. an archer
Asko Paropala makes provides a remarkable insight by equating two identical copper plate inscriptions with two distinctly different hieroglyphs on the obverse: 1. archer; 2. ficus religiosa leaf.
The lexeme (and phonetic variants), kamad.ha (Prakrit) explains these two glyphs and also the depiction of a person in penance. It is remarkable that this image of penance also occurs on a terracotta triangular cake found in Gulf of Khambat (NIOT). The rebus is: kammat.a 'mint' (Kannada).
Thus there are internal concordances within the corpus of inscribed objects which can be used to crack the code of the hieroglyphs using mleccha, a Prakrit, a proto-Indian language of the linguistic area circa 5000 years Before Present.
Kalyanaraman