I need to provide a transliteration scheme to transliterate marathi hymns for english speakers to chant.  What I need is a list of those Marathi devanagari letters that have two pronounciations and what those pronounciations are.  For example in Marathi ज is pronounced in some contexts as ja and in others as za . I need to know the pronounciations for the other Marathi letters with two pronounciations.

Also I have contradictory information about which letters have two pronounciations.  One source says its च छ ज झ , another source (the wiki page on Marathi phonology https://en.wikipedia.org/wiki/Marathi_phonology) says its:  च  ज झ फ

Thanks,

Harry Spier