Dalek Invasion Force Type 3

The Dalek Survival Guide identified a "Type 3" of the Dalek Invasion Force which operated on an occupied planet Earth in the "version of history C". (PROSE: Dalek Survival Guide)

This Dalek Invasion Force consisted of a Gold Dalek leader, supported by a Black Dalek (PROSE: Doctor Who and the Day of the Daleks) and grey Dalek drones. The Daleks were supported further by Ogron shock troops and human slaves including security personnel led by a designated and expendable Controller who was promptly exterminated and replaced after he assisted the Third Doctor. The Gold Dalek, supported by two grey Daleks, led a force of Ogrons back to the 20th century where they engaged UNIT forces in an ill-fated attempt to preserve their alternate timeline which ended with them being destroyed along with Auderly House by a Dalekanium bomb detonated by Shura, a 22nd century human guerilla fighter. (TV: Day of the Daleks)

Alternate universes
In the Unbound Universe, where the exiled Doctor arrived on Earth in 1997, the Brigadier had seen three Daleks kill 47 of his men in 1972, which was later cited as evidence of his incompetence. Since then, the Daleks had visited Earth "several times". He recalled the initial encounter when he saw the Daleks on Skaro. (AUDIO: Masters of War)