Complex sentence: But the city was ravaged due to the war of Lord Indra, the curse of Kannagi, which consumed Madurai, and the spate in the river Vaigai was brought back to life again and again but the only Shrine which maintains its ancient glory is Thirupuvanam.
Split into simpler sentences: But the city was ravaged due to the war of Lord Indra, the curse of Kannagi, which consumed Madurai, and the spate in the river Vaigai. Though the city was brought back to life again, the only Shrine which maintains its ancient glory is Thirupuvanam.