Rajendra Chola I

Rajendra led campaigns from 1002 CE. These include the conquest of the Rashtrakutas and the campaigns against the Western Chalukyas. He conquered the Chalukyan territories of Yedatore (a large part of the Raichur district between the Krishna and the Tungabhadra), Banavasi in the north-west of Mysore and capital Manyakheta. Rajendra erected a Siva temple at Bhatkal. In 1004 CE, he captured Talakad and overthrew the Western Ganga dynasty which had ruled over Mysore for almost 1000 years. He also conquered Kollipakkai, located to the north of Hyderabad in present-day Telangana. An excerpt from an inscription in Tamil from Kolar states:

In the 8th year of the reign of Kopparakesarivanmar sri Rajendra Sola Deva, who, while the goddess of Fortune, having become constant, increased, and while the goddess of the great Earth, the goddess of victory in battle and the matchless goddess of Fame, having become his great queens, rejoiced-that in his extended lifetime, conquered with his great war-like army Idaiturai-nadu, Vanavasi shut in by a fence of continuous forests; Kollipakkai, whose walls were surrounded by sulli trees; Mannaikkadakkam whose fortification was unapproachable.[15]

Inscription dated to 1100 CE Polonnaruwa, Sri Lanka

Raja Raja Chola I conquered the northern half of Sri Lanka during his reign. Rajendra invaded Ceylon in 1017 CE and annexed the entire island.[16] As a result of the campaign, Rajendra captured the regal jewels of the Pandyas, which Parantaka I tried to capture and the crown of the Sinhala king. The Sinhala king Mahinda V was taken prisoner and transported to the Chola country.

In 1018/19 CE, Rajendra marched into the Pandya and Chera Perumal kingdoms and conquered the two countries.[14] Rajendra appointed one of his sons as viceroy with the title Jatavarman Sundara Chola-Pandya with Madurai as the headquarters (in-charge both Pandya and Chera/Kerala countries).

In 1015 CE, Jayasimha II became the king of Western Chalukyas. He tried to recover the losses suffered by his predecessor Satyashraya, who fled his capital and was later restored to the throne by Raja Raja I as a tribute paying subordinate. Initially, Jayasimha II was successful as Rajendra was busy with his campaigns in Sri Lanka.[17] In 1021 CE, after the demise of the Eastern Chalukyan king Vimaladitya of Vengi, Jayasimha supported the claim of Vijayaditya VII to the throne against the claims of Rajaraja Narendra. Rajaraja Narendra was the son of Vimaladitya and Chola princess Kundavai.[17] Rajendra helped his nephew Rajaraja defeat Vijayaditya.[18] His armies defeated Vijayadiya in Vengi and Jayasimha in the battle of Maski.[17]

Gangaikonda Cholapuram was built by Rajendra Chola to celebrate his success in the Ganges Expedition

Brihadeeswarar temple inscription reading "Gangaikondacholan"

In 1019 CE, Rajendra's forces marched through Kalinga towards the river Ganga. In Kalinga the Chola forces defeated Indraratha the ruler of the Somavamsi Dynasty.[19] The Chola army eventually reached the Pala kingdom of Bengal where they defeated Mahipala. The Chola army also defeated the last ruler of the Kamboja Pala dynasty Dharmapala of Dandabhukti.[20][21] The Chola army went on to raid East Bengal and defeated Govindachandra of the Chandra dynasty and invaded Bastar region.[22][23] The territories held the status of tribute paying subordinates and trade partners with the Chola Kingdom, an arrangement that lasted till the times of Kulothunga III.[24] He constructed a new capital at Gangaikondacholapuram and built the Brihadeeswarar Temple similar to the Brihadeeswarar Temple at Thanjavur.

Rajendra Chola's Territories c. 1030 CE

Srivijaya was a kingdom centered on Palembang in Sumatra, ruled by the Sailendra dynasty. During the reign of Mara Vijayatungavarman, Srivijaya had cordial relations with the Chola Empire during the reign of Rajaraja Chola I; Mara Vijayatungavarman built a Chudamani Vihara at Nagapattinam. Mara was succeeded by Sangrama Vijayatunggavarman.

Khmer Emperor Suryavarman I made war on the kingdom of Tambralinga (in the Malay Peninsula). Suryavarman I requested aid from Rajendra.[25][26] After learning of Suryavarman's alliance with Rajendra Chola, Tambralinga requested aid from Srivijaya, which was granted by Sangrama.[25][27] This eventually led to the Chola expedition against the Srivijiya Empire. This alliance somewhat also had a religious nuance, since both the Chola Empire and the Khmer Empire were Hindu Shivaist, while Tambralinga and Srivijaya were Mahayana Buddhist.

In 1025 CE, Rajendra led Chola forces across the Indian Ocean and invaded Srivijaya, attacking several places in Malaysia and Indonesia.[28] The Chola sacked Kadaram (the capital) and Pannai in Sumatra and Malaiyur in the Malay Peninsula. Rajendra also invaded Tambralinga and the Langkasuka Kingdom in modern Malaysia and south Thailand.[12][29][30] The Chola forces captured the last ruler of the Sailendra Dynasty Sangrama Vijayatunggavarman.[31] The Chola invasion was the end of Srivijaya.[32][33] Srivijaya's maritime power declined under Chola attack.[34] After this the Chola Empire conquered large portions of Srivijaya, including its ports of Ligor, Kedah, and Tumasik (now Singapore).[34][35] The Chola invasion furthered the expansion of Tamil merchant associations such as the Manigramam, Ayyavole, and Ainnurruvar into Southeast Asia.[36][37][38][39] For the next century, Tamil trading companies from southern India dominated Southeast Asia.[32][33] The expedition of Rajendra Chola I is mentioned in the corrupted form as Raja Chulan in the medieval Malay chronicle Sejarah Melaya, and Malay princes have names ending with Cholan or Chulan, such as Raja Chulan of Perak.[40][41][42][43][44] One record of Rajendra Chola describes him as the King of Lamuri in north Sumatra.[45] The Chola invasion led to the fall of the Sailendra Dynasty of Srivijaya and the Chola invasion also coincides with the return voyage of the great Buddhist scholar Atiśa from Sumatra to India in 1025.[46]