Theory:

One of the major activities of the Tamil Nadu Archaeological Department is to carry out archaeological excavations in historically important sites in the state. The Department excavated \(40\) sites, of which \(36\) excavation reports were brought in the book form.
 
The list of excavated sites:
 
1. Korkai Tuticorin \(1968\)\(–\)\(1969\).
2. Panchalankurichi Tuticorin \(1968\)\(–\)\(1969\).
3. Vasavasamudram Kanchipuram \(1969\)\(–\)\(1970\).
4. Anaimalai Coimbatore \(1969\)\(–\)\(1970\).
5. Pallavamedu Kanchipuram \(1970\)\(–\)\(1971\).
6. Karur Karur \(1973\)\(–\)\(1979\), \(1994\)\(–\)\(1995\).
7. Panayakulam Dharmapuri \(1979\)\(–\)\(1980\).
8. Boluvampatti Coimbatore \(1979\)\(–\)\(1980\), \(1980\)\(–\)\(1981\).
9. Kovalanpottal Madurai \(1980\)\(–\)\(1981\).
10. Thondi Ramanathapuram \(1980\)\(–\)\(1981\).
11. Gangaikondacholapuram Ariyalur \(1980\)\(–\)\(1981\), \(1986\)\(–\)\(1987\), \(2008\)\(–\)\(2009\).
12. Kannanur Tiruchirappalli \(1982\)\(–\)\(1983\)
13. Kurumbanmedu Thanjavur \(1984\)\(–\)\(1985\)
14. Palayarai Thanjavur \(1984\)\(–\)\(1985\).
15. Alagankulam Ramanathapuram \(1986\)\(–\)\(1987\), \(1990\)\(–\)\(1991\), \(1993\)\(–\)\(1994\), \(1995\)\(–\)\(1996\), \(1996\)\(–\)\(1997\), \(1997\)\(–\)\(1998\), \(2014\)\(–\)\(2015\).
16. Tirukkovilur Villupuram \(1992\)\(–\)\(1993\).
17. Kodumanal Erode \(1992\)\(–\)\(1993\), \(19926\)\(–\)\(1998\).
18. Sendamangalam Villupuram \(1992\)\(–\)\(1993\), \(1994\)\(–\)\(1995\).
19. Padavedu Tiruvannamalai \(1992\)\(–\)\(1993\).
20. Tiruttangal Virudhunagar \(1994\)\(–\)\(1995\).
21. Poompuhar Nagappatinam \(1994\)\(–\)\(1995\), \(1997\)\(–\)\(1998\).
22. Maligaimedu Cuddalore \(1999\)\(–\)\(2000\).
23. Tirunelveli Ramanathapuram \(1999\)\(–\)\(2000\).
24. Mangudi Tirunelveli \(2001\) – \(2002\).
25. Perur Coimbatore \(2001\)\(–\)\(2002\).
26. Andipatti Tiruvannamalai \(2004\)\(–\)\(2005\).
27. Modur Dharmapuri \(2004\)\(–\)\(2005\).
28. Marakkanam Villupuram \(2005\)\(–\)\(2006\).
29. Parikulam Thiruvallur \(2005\)\(–\)\(2006\).
30. Nedunkur Karur \(2006\)\(–\)\(2007\).
31. Mangulam Madurai \(2006\)\(–\)\(2007\).
32. Sembiankandiyur Nagappatinam \(2007\)\(–\)\(2008\).
33. Tranquebar Nagappatinam \(2008\)\(–\)\(2009\).
34. Rajakkalmangalam Tirunelveli \(2009\)\(–\)\(2010\).
35. Talaichankadu Nagapattinam \(2010\)\(–\)\(2011\).
36. Alambarai Kancheepuram \(2011\)\(–\)\(2012\).
37. Srirangam Trichy \(2013\)\(–\)\(2014\), \(2014\)\(–\)\(2015\).
38. Ukkaran Kottai Tirunelveli  \(2014\)\(–\)\(2015\).
39. Pattaraiperumbudur Tiruvallur  \(2015\)\(–\)\(2016\).
40. Keeladi Sivagangai  \(2017\)\(–\)\(2018\),  \(2018\)\(–\)\(2019\).