I heard a complaint of how PhD theses are "rotting". It appears that they may be available digitally. PhD theses of various universities appear to have been digitized and is served out of University of Mysore. This includes U of Madras theses. Here is the link for the PhD thesis: "Vriddhagirisvara Temple- Vriddhachalam - A study of its history, art and architecture"
Hi Sankar- Yesterday morning, I ordered it via my university library as an inter-library loan. I should be getting hold of it in a week or two. I'd let you know how that progresses. Regards, Raj Mutharasan