3500 to 4000 years ago, nomadic people from the steppe region began migrating into modern Punjab. Despite leaving no archaeological evidence in Punjab itself, Russian archaeologists in the 1970s discovered remnants of ancient settlements that corresponded to the civilization described in the Rigveda. Subsequent genetic research overwhelmingly confirmed that there was indeed an influx of people into Punjab from the north of the Hindu Kush mountains.
The video attached here goes through an archaeological site with world famous Russian archaeologist Viktor Sarianidi. This site on ancient Marghab River delta is believed to have served as a stopover settlement before people moved on to the Indus plains. They found remains of sacrificed horses, chemical signature of ceremonial drink Soma and much more that is preserved in Rigvedic texts that was later formulated in Punjab.
