[FierceDraka]

So the Indian Tamil script has no vowels, like Hebrew?

[CarrotAndStick]

Nope, that's not Tamil, those are the consonants of the Devanagari script. Here's a complete list:

[CarrotAndStick]

A rough Western equivalent of how the alphabets of the Indian languages work is the forming of words with the pronounciation key of a dictionary. That is why words written in Indian scripts can only be pronounced one way.