It is a good thing that Vithuvan Ma. Rajamanikkam has come forward to write the history of these great centuries in detail in Tamil. It is easy to understand by reading a few pages that they have written their book in a well researched manner in a simple style that can be used by anyone. They are well versed in good research texts and are self-employed in the field of research. However, they do not think that everyone will agree with all the opinions they have published. Afu is not necessary. In many parts of the history of our country there is room for differences of opinion. But texts like these are good tools for making it easy for everyone to understand the insights available from time to time. I hope many will benefit from reading this Chola history.