Generally speaking, Archeulean industry (which basically amounts to a certain kind of ancient stone tools), is associated with archaic hominins and most prominently, with Homo Erectus. It follows "the more primitive Oldowan technology some 1.8 million years ago" associated with Homo habilis, and is found in a period often called the Lower Paleolithic.
Acheulean tools were not made by fully modern humans that is, Homo sapiens although the early or non-modern (transitional) Homo sapiens idaltu did use Late Acheulean tools as did proto-Neanderthal species. Most notably however it is Homo ergaster (sometimes called early Homo erectus), whose assemblages are almost exclusively Acheulean, who used the technique. Later, the related species Homo heidelbergensis also used it extensively.
The 1.5 million years ago date suggests that Homo Erectus, or a similarly sophisticated hominin arrived in India within 300,000 years after this species of hominin evolved in Africa...