The temple is in Sivagangai District between Pudukottai and Karaikudi.
Templenet dates back this temple to age of Narasimha pallavan and compares it to the rock cut temples.
From PL.chidambaram's Book "Nagarathar" he has quoted the formation of this temple and says that this temple is constructed by pandavas.Because sivagangai was never under the rule of pallavas...it was with the pandyas and later taken by cholas.
The Vyasyas (Now called Chettiars) are people who are good in business and they were known for money handling skills.
Initially it seems that they were part of now called Andhra Pradesh (Still Vyasya is a one of the big community in Andhra).
It seems Chettiars had animal instict, whenever they sense there is goin to be flood and famine they will leave that place and migrate to an other kingdom. They were very well welcomed by the kings because of their skills in business and ofcourse they were rich..Also migration took place when heavy taxes were imposed on Nagarathars by the kings.. This migration continued until finally they got settled in Sivagangai under Pandya king Soundarapandian.
There was difference of opinion among the vyasyas and they split in to number of subdivisions. That time Ariyalur Manika vinayagar was the temple for vyasyas. Now after the split each division asked for a temple, so pandya king constructed nine temples, one for each subdivision. Pillayarpatti is one among them.
Still now chettiars are the only community whose subcaste are divided based on Sivan Temples. For eg there are subcastes like Pillayarpatti, Elayatrankudi and etc.
Now the Pillayarpatti is with Nattukottai Nagarathar, richest of all Chettiars.In Pillayar patti the main sanctum (garbhgruha) allows only bhramhacharis and only they can perform any kind of oblations to the lord. This being said, this is one place where they believe that vinayagar is a bhramhachari.
Another resource states that this temple is about 2000 yrs old and it is of kudavarai type. I have seen another kudavari in madurai narasingham patti temple too.
valampuri vinayagar is also called as karpaga vinayagar. About 6 feet tall.
Thanga kavachathil partha ithu mathiri irukum.
Pillayar Gajamugasuranai konnutu pavam poga sivanai ninaichu thavam panna thalam nu solranga. Vadaku pathu ukkandhirukaru. Pillayar poga lingothbavar, sivan, marudan kudi
eesar , vaadaamalar mangai (enna oru arputhamana peru) ellam irukango.
This pillayar is famously called as visa pillayar or passport pillayar as ppl blv he takes care of foreign immigration stuffs.
BY the way other famous temples in Sivagangai dts are:
kaalaiyar koil, madapuram, thirukoshtiyur, kundrakudi, pattamangalam.
My friend, his mom and myself once were talking and the next day happened to be vinayagar chathurthi and we decided to go to pillayarpatti. We went to the temple around 7PM the previous day had darshan and food from temple and spent the night in the temple
corridor just as you might have seen many people lying around in temple. I think this is the best way to know and become one with the temple ( though it may not be possible all the time). Was shivering as we slept outside in the temple corridor as we dint have blankets and woke up early morning had bath and was fortunate to have pillayar dharisanam on vinayagar chathurthi with pillayar decked in resplendent gold. When i write this i have goosebumps running over.
The nagarathar community has done/been doing an outstanding job in maintaining the temple and the temple IS clean.
Just 5 miles from that place is Kunnakudi a beautiful small town with tanks brimming with lotus and murugan temple on a small hillock. I am not sure how Kunnakudi is now but I was pleasantly surprised to find may tanks in this small village surrounding the hillock.
Don't know whether this was useful but hey that was my personal experience about i guess 8-10 yrs back.
Abhishegam romba supurba irukum. Some 20 aagama students sitting inside the cave (namaku theriya mattanga when seen from outside) chanting vedam athoda reverbration ellam anubavicha than therium. During abhishekam thirai vilagi azhaga pillayar vibhuthi, manjal,
pongal, thayir sadham nu color color darsanam kuduthu kadaisila thanga kavacham sathi full deeparathanaila pakkum pothu..apdiye kailasathala nikkira mathiri oru feeling varum. 2 hrs nadakum abhsihekam. Since maintained by nagarathars like other 8 temples this one is also
maintained very well.