When Rajaraja came to power, he inherited a small kingdom centered around the Thanjavur–Tiruchirappalli region, the heart of traditional Chola territory. He transformed this kingdom from one that was recovering from attacks by the
Rashtrakuta Empire into one that was a well-organised empire with a powerful army and navy. Under his rule, the northern kingdom of
Vengi became closely allied with the Cholas, and their influence expanded along the eastern coast all the way up to
Kalinga in the north.
Rajaraja Chola Thiruvalangadu plates states that, Arulmolivarman : The Larger Leiden plates States that
Rajaraja,
Against Kandalur Salai , near
Kanyakumari Rajaraja's earliest inscriptions commemorate a significant triumph at Kandalur Salai, located in present-day Kerala, around 988. He is acclaimed as 'Kāndalūr śālai Kalam-arutta', which translates to 'the one who destroyed Kandalur Salai'. Originally, this area was under the control of the
Ay chief, who served as a vassal to the Pandya king of
Madurai. However, it remains uncertain whether warriors from the Chera or Pandya dynasties were involved in this conflict. The Thiruvalangadu inscription suggests that Rajaraja's general captured
Vizhinjam (Viḷinam), which could have been part of the Kandalur Salai campaign. It appears that this engagement involved the Chola navy, or possibly a joint operation involving both the navy and the army.
Conquest of Kerala and the Pandyas Rajaraja's inscriptions begin to appear in
Kanyakumari district in the 990s and in
Thiruvananthapuram district in the early 1000s. The Chola subjugation of Kerala can be dated to the early years of the 11th century. The Senur inscription, dated to 1005 and attributed to Rajaraja, records his military achievements. It mentions the destruction of the Pandya capital, Madurai, as well as the conquest of several regions. These include defeating the formidable rulers of Kollam (Venad), Kolla-desham (Mushika), and Kodungallur (the Chera Perumals of Makotai). During this campaign, he subdued the
Nolamba dynasty, who were previously vassals of the Ganga dynasty. These territories were initially under the suzerainty of the Rashtrakutas, who had been defeated by the Western Chalukyas in 973. Consequently, the Cholas found themselves in direct conflict with the Chalukyas.
Battle of Gangavadi By 1004, Rajaraja had conquered the Gangavadi province. He established control over the western part of Gangavadi, ruled by the Changalvas, and over Kodagu, governed by the Kongalvas, who were then made vassals of the Chola Empire. In 1004 AD Raja Raja Chola encamped in
Gangavadi province, and soon
Chalukya army invaded. In the
Battle of Gangavadi, Raja Raja Chola defeated the invading Chalukya army and secured
Gangavadi Province.
Battle of Annigeri Raja Raja Chola led the campaign in Ratta Padi in 1003–1004 AD and achieved victory in many battles.
Raja Raja Chola I defeated
Satyashraya in the
Battle of Annigeri and successfully conquered Annigeri Province. In this battle Satyashraya was assisted by his brother Dasavarman and General Dandanayaka Kesava. Dandanayaka Kesava was governor of the Belvola-300 and Puligere-300 divisions, which are located in
Annigeri Province. The Tiruvalangadu plates of
Rajendra Chola state that Raja Raja defeated
Satyashraya who "fled to avoid misery from the attack of his (i.e., Arulmolivarman's) ocean-like army; (still) misery found a (permanent) abode in him. In this battle Satyashraya's brother, Prince Dasavarman, was killed, and Chalukya general Dandanayaka Kesava was taken prisoner. After Raja Raja Chola returned to his capital with booty of some gold flowers and treasures, which he dedicated to the temple of
Thanjavur.
Siege of Unkal Raja Raja Chola diverted attention from
Vengi affairs to the
Satyashraya to counteroffensive and sent an army under Crown Prince
Rajendra Chola in Chalukya Country. Rajendra marched with a 900,000-strong army and Captured Santalige, Kadambalige,
Banavasi,
Kogali and besieged the fort of Unkallu in the modern Unkal district located in the Dharwad district. In this ensuing battle, the Cholas defeated the Chalukyas, and the Chalukya commander, Lenka Keta, was killed. After Rajendra Chola successfully captured Unkallu Fort and then encamped at Donur.
Battle of Donur Following the Siege of Unkallu Fort, Rajendra battled against Satyashraya, who was opposing him in Donur. In the Battle of Donur,
Rajendra chola defeated
Satyashraya and successfully raided
Banavasi,
Donur (in the Bijapur region),
Unkal (near modern Hubli),
Kudala Sangama and parts of the
Raichur Doab and secured
Gangavadi and Nolambavadi. But this conquest and all raids in Chalukya country only lasted until
Satyashraya reconquered all territories up to Thungapathra. An inscription attributed to Irivabedanga Satyashraya from Dharwar acknowledges his allegiance to the Western Chalukyas and highlights the Chola incursion. He accuses Rajendra Chola of leading a massive force of 955,000 soldiers and causing havoc in Donuwara(
Donur in
Bijapur district), blurring the ethical boundaries of warfare prescribed by the
Dharmaśāstras. Historians such as James Heitzman and Wolfgang Schenkluhn interpret this confrontation as indicative of personal animosity between the rulers of the
Chola and
Western Chalukya kingdoms, akin to historical conflicts between the
Chalukyas of Badami and the
Pallavas of Kanchi.
Vengi kingdom Meanwhile, the Vengi kingdom was under the rule of Jata Choda Bhima, a member of the
Telugu Cholas branch. Notably, Rajaraja cemented an alliance between the Chola Dynasty and the Eastern Chalukya kingdom by arranging the marriage of his daughter, Kundavai, to the next viceroy of Vengi, Vimaladitya. This strategic union ensured the future succession of Rajaraja's descendants to the throne of the
eastern Chalukya kingdom.
Satyashraya retaliated by invading the
Vengi country in 1006 A.D. and placed Saktivaiman on the Vengi Throne. Raja Raja Chola diverted the Chalukyas to send a big army under Prince Rajendra Chola in Chalukya country. So
Satyashraya, without having reinforcement to deal with the Chola army, called back his general Bayal Nambi, who advanced up to
Chebrollu. Satyastraya did not permanently recapture Vengi. He made attempts, but the Cholas successfully defended their influence. Additionally, a similar inscription in
Channapatna describes Rajaraja defeating the Hoysalas.General Aprameya defeated Hoysala leaders manjaga, kaliga(or kali – ganga),Nigavarma and others in the
Battle of Kalavur .winning by his valour in the plain of Kalavur a name to endure for ever.
Conquest of Kuda-malai-nadu In multiple historical accounts, there are mentions of Rajaraja's conquest of a place called "Kuda-malai-nadu" around the year 1000. In certain inscriptions found in Karnataka, the term "Kudagu-malai-nadu" is used instead of "Kuda-malai-nadu". Scholars generally believe that this region corresponds to Coorg (Kudagu). The king's conquest of Malainadu is described in the Vikrama Chola Ula, where it is said that he achieved it in just one day, crossing 18 mountain passes. According to the Kulottunga Chola Ula, Rajaraja was depicted as beheading 18 people and burning down Udagai. Additionally, the Kalingathupparani references the establishment of Chadaya Nalvizha in Udiyar Mandalam, the seizure of Udagai, and the plundering of several elephants from the area. The Tiruppalanam inscription from 999 records the king's offering of an idol obtained as spoils from Malainadu. Rajaraja I and Rajendra I are described as the greatest Chola rulers because of these conquests. == Personal life ==