After the Mauryas, the Satavanahanas had come to rule over the Deccan and South India. At that time, the Shakas were powerful in north-west Deccan and in Gujarat. The rule of the Satavahanas in southern India had begun in the second half of the 1st century A.D. Their rule Calle to an end in 225 A.D. During the rule of Simuka, the first ruler of the Satavahana dynasty, the Satavahanas had established control over Pratisthhan and Naneghat regions. Satakarni I was the third king of the Satavahana dynasty. During his rule, the power and prestige of the Satavahanas had increased manifold. His authority had spread over almost the entire southern India. The chief opposition to the Satavahanas came from Sahaka-Kshatrapas to the west. Satavahanas were at war with yet another Shaka-Kshatrapa group.Rudradamana was a notable ruler of that group (He had assumed the title Mahakshatrapa, The Junagarh Rock Inscription enlightens us about his exploits. The influence of the Shaka-Kshatrapa rulers had extended from Ujjayini to Gujarat and Kathiawad. Political and economic factors were responsible for the rift between the Shakas and the Satavahanas. Both powers wished to establish control over certain specified areas. One such area was eastern and western Malwa. In the Kosha region of eastern Malwa, there was a diamond mine. Maritime commerce through western Malwa and the flourishing Indo-Roman trade of the west coast attracted both powers. It was over the issue of control over these regions, that the Shakas and the Satavahanas fought against each other. In time, the Satavahana rule in South India came to an end. A number of small kingdoms then took its place.