[8][9] While some chroniclers, including Inca Garcilaso de la Vega and Felipe Guaman Poma de Ayala, claimed that under the fourth inca Mayta Capac's reign, parts of Collasuyu (a region comprising a larger territory than the colla chiefdom alone)[10] were already conquered, most other chroniclers and local sources state Pachacuti conquered these regions.

[14] The chronicler Pedro Cieza de Leon mentioned a large number of titles used by Colla rulers, leading the Peruvian ethno-historian María Rostworowski to assert that multiple chiefs ruled the territory.

[3] For the anthropologist Elizabeth Arkush, archeological evidence suggests the aymara kingdoms mentioned in colonial sources were, in pre-Inca times, politically fragmented territories and not unified chiefdoms, contrary to chronicler's assertions.

[15] According to Martti Pärssinen, Pachacuti continued conquering beyond the Desaguadero River, until around Lake Poopó, while John Howland Rowe wrote that the Desaguadero represented the southern Inca border during Pachacuti's reign, conquests south of the river happening later, according to him.

Before the conquest of the Collas, the Inca Empire had conquered the Andahuaylas region, and, during Pachacuti's first military campaign, the Soras,[5] the Rucanas, the Chalcos, the Vilcas, the Chinchas, the Huamangas, and Vilcashuamán.

[2] The Inca sent his general Apo Conde Mayta to the border with the Collas, before joining the vanguard troops.

The colla chief, Chuchic Capac, was captured, following a direct attack by Pachacuti annd his guard, and his territories were annexed into the Inca Empire.