However, again I think as you point out so eloquently, yes, you know these are complex languages, with their own syntax, with their own lexicon, with their own grammar you know there is a whole field of deaf phonetics.
तुम्ही अगोदर सांगितल्याप्रमाणे भारतीय भाषांमध्ये विविधता तर आहेच परंतु प्रत्येक भाषेची वेगवेगळी वाक्यरचना, शब्दकोश, व्याकरण,सुद्धा असते.