Christian fish symbol: For the first three centuries, Christians used the fish with or without the word “fish” in Greek written in its body, as their identifying mark and symbol. They did not use the Orphic cross-crucifix as a symbol until much later. Even if Judas Thomas had come to Mylapore, he would not have made cross symbols as he was a practising Jew and the Greek Orphic cross was abhorrent to him. 1st century Jews whether Moses or Jesus followers (there were no “Christians” in the 1st century) were rigid iconoclasts and could not tolerate Pagan symbols. The Christian cross was introduced into India by Christian immigrants from Persia after the 7th century.