According to the historian Kamath, soon after his coronation, Someshvara I interfered in the affairs of Vengi and invaded the region but faced defeat against the Chola monarch
Rajadhiraja Chola (crowned in c.1044) at Amaravathi. The Cholas followed this by invading Chalukya territory. According to the historian Sastri, Rajadhiraja defeated Someshvara I in the battle of Dannada ("Dhanyakataka") on the banks of the
Krishna River compelling the Western Chalukya armies to retreat, and the fort at Kollipakki (Kulpak) was razed to the ground. This was followed by victories at
Kampili and Pundur. According to the historians Chopra et al., the details of the sack of Kampili is recorded in the Manimangalam inscription. A victory pillar with the Chola emblem was installed at Yetagiri (modern
Yadgir in the
Yadgir district). Finally, the Cholas plundered Kalyani, the Chalukya capital in c.1045. Rajadhiraja performed the
Virabhisheka ("victory celebration") in the destroyed enemy capital and assumed the title
Vijayarajendra ("victorious Rajendra"). However, according to Sastri and Sen, in a dramatic recovery, Someshvara I drove the Cholas out of Vengi by c.1050 and re-established his influence, not only in Vengi but also in
Kalinga (modern day
Orissa). Sen further claims Someshvara I took the battle right to the heart of the Chola empire. According to Kamath there was a Chalukya counterattack and a raid on
Kanchipuram. For a while the Cholas did not press their cause either in Vengi or Kalinga. However, in c.1054, the Cholas responded by invading
Koppal (Koppam) where King
Rajadhiraja Chola was killed and Someshvara I had to mourn the death of his brother Jayasimha. However, according to Sastri, the Cholas were able to convert defeat into victory when their crown prince Rajendra II (brother of Rajadhiraja) mounted a surprise counterattack and pushed the Chalukya armies back. Rajendra II crowned himself on the battlefield, mounted a victory pillar at Kollapura (modern
Kohlapur) and returned to his capital
Gangaikondacholapuram with much booty which including the Chalukya queens Sattiyavvai and Sangappai. Hostilities continued and in c.1059
Rajendra Chola II invaded the Chalukya kingdom but was defeated on the banks of the Tungabhadra River. Someshvara I constructed a temple at
Annigeri in the modern
Dharwad district to celebrate this success. However, according to Sen, in the battle of Mudakkarru on the banks of the Tungabhadra in c.1059, Someshvara I suffered another defeat. ==Success in the central and eastern India==