Do you mean Thebes (the Egyptian Alexandria)? I'd say that first I think you're asking about the wrong city, and second you're going to have to be more specific about which part of India and which time period you're referring to for me to give any kind of reasonable opinion.
Further, this might warrant its own thread in the History section or even in this Religion and Philosophy section, if what you're asking about is religious in nature.
Ptolemaic Alexandria, not Thebes.
http://www.adolphus.nl/xcrpts/xclillie.html
[Megasthenes, Clement of Alexandria]
[102] We now come to a valuable piece of testimony, that of a Greek visiting India. Seleucus Nicator sent an ambassador, named Megasthenes, to King Chandragupta (B.C. 302-298). He visited that monarch at his capital, Palibothra, or Patna. His account of the India of that day is unfortunately lost; but through Diodorus Siculus, Strabo, Arrian, and Clement of Alexandria, some valuable fragments have come down to us. Patna, it must be remembered, was in the very heart of the Buddhist Holy Land. Clement of Alexandria cites a passage from Megasthenes, on Indian Affairs. On the same page he thus describes the Indian "philosophers":
"Of these there are two classes, some of them called Sarmanae, and others Brahmins. And those of the Sarmanae who are called Hylobii neither inhabit cities nor have roofs over them, but are clothed in the bark of trees, feed on nuts, and drink water in their hands. Like those called Encratites in the present day, they know not marriage nor begetting of children. Some, too, of the Indians obey the precepts of Buddha, whom, on account of his extraordinary sanctity, they have raised to divine honours."
The importance of this passage is this, that from Strabo we get the description given by Megasthenes of the Indian philosophers, and it is made certain that the earlier part of this passage is from the same source.
[103] Strabo describes the Brahmins and the" Germanes," also called, he says, "Hylobii." He gives the same details as Clement of Alexandria about their feeding on wild fruits and wearing the bark of trees. He, too, draws a distinction between the Germanes and the Brahmins on the subject of continency, the Brahmins being polygamists.
From this it seems certain that Clement of Alexandria was writing the original work of Megasthenes before him. We may therefore, conclude that this passage about Buddha, sandwiched as it is between two genuine citations, was also in Megasthenes. [Not necessarily; Pantaenus had been to India and met Buddhists there himself. But Lillie didn’t know this] Strabo had handed down to us another statement of Megasthenes about the Hylobii :
"By their means the kings serve and worship the Deity."
There can be no doubt that the Sarmanes (Sramanae) and Brahmins of Megasthenes were the Brahmins and the Buddhists. To the first, according to Megasthenes, were confided sacrifices and ceremonies, for the dead as well as for the living. They were a caste apart, and none outside this caste could perform their duties. The gods would not accept the sacrifice of such an interloper. Their ideas on life and death were very similar to those of Plato and the Greeks. The Brahmins ate flesh and had many wives. Every new year there was a great synod of them.
GeNme I have started a new thread for this:
http://www.internationalskeptics.com/forums/showthread.php?p=5037033#post5037033
