It is the knowledge and morality that supports the rise of the people. Knowledge of the mother tongue is essential for everyone. Religious knowledge that enhances godliness promotes morality and culture. In this day and age when knowledge and culture are declining in quality among the people, it is the chief duty of the educators to keep in mind the ways in which they can inculcate quality in the students.

The book explains the special news about the three cities that develop Tamil mother tongue knowledge and religious culture with such a sense of duty. Madurai, Nellai and Thillai, the three ancient cities of Tamil Nadu, are published under the title 'Tamil Development Cities'. I created this book with the help that the Tamil world has been giving me for years. I am constantly encouraged in this work by the high-minded ruler of the Vegan Society, Mr. W. Yan is greatly indebted to Subbaiah Pillai.