Mandalam
A mandalam was the largest territorial division during the Chola dynasty. At its height, the state was divided into nine mandalams which included areas in Sri Lanka and other conquered areas. The two core mandalams were Chola-mandalam and Jayangondachola-mandalam.
Administrative divisions under the Cholas
The term mandalam had been in use as a designation of territory even during the Classical Age where it had been used to refer to the Chera, Chola, and Pandiya mandalams. Under Raja Raja Chola I, the concept was evolved to organise the various politico-cultural subregions of the Tamil country that had been unified under the Cholas. Each of these historically significant regions largely continued to maintain its own distinctive cultural characteristics as mandalams.The mandalam was the largest of the Chola territorial divisions and was divided into smaller units named ). Each nadu functioned as an agrarian production unit and comprised around ten villages and possibly one or two towns. Raja Raja Chola I introduced an intermediate division named ) to centralise the administration of the state. Chola-mandalam was divided into ten which, through bifurcation and rearrangement, increased to fifteen by early 12th century.
At the peak of their powers, the Chola country was divided into nine mandalams which included conquered regions such as Sri Lanka.
Cholamandalam
One of the core mandalams of the Cholas, Cholamandalam comprised the modern districts of Tanjavur, Tiruchirapalli, and South Arcot. The capitals at various points of Chola history are located here at Uraiyur, Tanjavur, and Gangaikondacholapuram.Parkavan Mandalam
The Districts of Perambalur, Ariyalur, Salem, Attur, Kallakurichi, Part of Nammakal, Dharmapuri, Chidambaram, Villupuram, Cudalore, Trichy, Tanjore, Pudukottai, Sivagangai and Ramanathapuram are called Parkavan Mandalam.Tondaimandalam / Jayankondacholamandalam
Tondaimandalam was another of the core mandalams of the Cholas and was previously a territory of the Pallavas. When it passed into the hands of the Cholas, it was renamed Jayankondacholamandalam. Tondaimandalam broadly covers the modern districts of Chingleput, South Arcot, and North Arcot in Tamil Nadu and portions of Chittoor and Nellore districts in Andhra Pradesh. When under the control of the Pallavas between the fifth and ninth centuries, Kanchipuram was their capital.Kongumandalam
Kongumandalam was a region bounded on all sides by hills and consisted of the present-day districts ofCoimbatore, Nilgiri, Erode, Tiruppur, Karur, Krishnagiri, Dindigul, Salem, Namakkal, Dharmapuri and small parts of Tiruchirappalli, Perambalur, Tirupathur, Palakkad district and Chamarajanagar district.