Temples for the three forms of Shakthi – Durga as Lalithambigai at Thirumeyachur, Lakshmi as Swarnavalli at Thilatharpanapuri & Saraswathy at Koothanur are all located near Poonthottam.
I have written separately about each of these three temples.
- Begur Naganatheshwara Temple (rajamala.wordpress.com)
- Ganapati variations: How many Ganesas? (enfolding.org)