I had been reading "Slavery in Tamilnadu" a research book and its findings, right down from the Age of Sangam till the last 30 years. I will post the details of the author and the publisher. Picked it from the NCBH book sales near my house.
This book made me understand the meaning of "Udappila poravan"
You are doing great service by bringing out the lost glory of Tamils in art and sculptures
I have toured almost all far east nations. They gave utmost importance and respects to the Indian sculptures but in India, it was not there. Unfortunate for the people who are actually fortunate by taking birth in the great nation.