Analysis of information sources in references of the Wikipedia article "யமன்" in Tamil language version.
Up until the late nineteenth century, many Nuristanis practised a primitive form of Hinduism. It was the last area in Afghanistan to convert to Islam—and the conversion was accomplished by the sword
The Kalasha are a unique people living in just three valleys near Chitral, Pakistan, the capital of North-West Frontier Province, which borders Afghanistan. Unlike their neighbors in the Hindu Kush Mountains on both the Afghani and Pakistani sides of the border the Kalasha have not converted to Islam. During the mid-20th century a few Kalasha villages in Pakistan were forcibly converted to this dominant religion, but the people fought the conversion and once official pressure was removed the vast majority continued to practice their own religion. Their religion is a form of Hinduism that recognizes many gods and spirits and has been related to the religion of the ancient Greeks... given their Indo-Aryan language, ... the religion of the Kalasha is much more closely aligned to the Hinduism of their Indian neighbors that to the religion of Alexander the Great and his armies.
Some of their deities who are worshiped in Kalash tribe are similar to the Hindu god and goddess like Mahadev in Hinduism is called Mahandeo in Kalash tribe. ... All the tribal also visit the Mahandeo for worship and pray. After that they reach to the gree (dancing place).
About half of the Kalash practice a form of ancient Hinduism infused with old pagan and animist beliefs.