This was the first temple I ever happened to visit as part of the REACH foundation in 2006... I still remember vividly... We saw two stones with inscriptions lying next to the well... and the mandapam renovation thing - this is not the first time... even back then we were told that during the earlier renovation, madapam renovation been done with such stones (possibly with inscriptions) buried under the floor for 'rising' the height of the mandapam....