Tailapa II, also known as Taila II and by his title Ahavamalla, was the founder of the Western Chalukya Empire in peninsular India. Tailapa claimed descent from the earlier imperial Chalukyas of Vatapi (Badami), and initially ruled as a Rashtrakuta vassal from the Tardavadi-1000 province in the present-day Vijayapura district of Karnataka. When the Rashtrakuta power declined following an invasion by the Paramara king Siyaka, Tailapa overthrew the Rashtrakuta emperor Karka II, and established a new dynasty.

The Western Chalukya Empire ruled most of the western Deccan, South India, between the 10th and 12th centuries. This Kannada-speaking dynasty is sometimes called the Kalyani Chalukya after its regal capital at Kalyani, today's Basavakalyan in the modern Bidar district of Karnataka state, and alternatively the Later Chalukya from its theoretical relationship to the 6th-century Chalukya dynasty of Badami. The dynasty is called Western Chalukyas to differentiate from the contemporaneous Eastern Chalukyas of Vengi, a separate dynasty. Before the rise of these Chalukyas, the Rashtrakuta Empire of Manyakheta controlled most of the Deccan Plateau and Central India for over two centuries. In 973, seeing confusion in the Rashtrakuta empire after a successful invasion of their capital by the ruler of the Paramara dynasty of Malwa, Tailapa II, a feudatory of the Rashtrakuta dynasty ruling from Bijapur region defeated his overlords and made Manyakheta his capital. The dynasty quickly rose to power and grew into an empire under Someshvara I who moved the capital to Kalyani.