Grantha Alphabet Language Online
Grantha script (From Wikipedia)
Grantha grantha meaning "book" or "manuscript") is an ancient script that was prevalent in South India. It is generally supposed to have evolved from Brahmi, another ancient Indic script.
Grandha, devanagiri and tamil alphabets
Grantha, Vattezhuthu, Kolezhuthu, Malayanma, Devanagiri, Brahmi and Tamil alphabets