The people here were came to india during the conquer of this place as the soldiers of KING Alexander.
The land in the east of the Hindu-Kush range that lies between Pakistan and Afghanistan was called Kafiristan (the land of Kafirs), and there dwelled the Kafirs (the islamic word for "pagan") who rejected any conversion to Muslim and followed their own religion. Guarded by their geography and strength, it is assumed that 200 thousand Kafirs lived there. They drove away the armies of Timur (14C.), Akbar (16C.), Nadir-Shah (18C.), and were completely shut out from the exterior world.
But in 1895, Amir Abdul Rahman, the King of Afghanistan, conquered Kafiristan after a grueling battle and compelled them to convert to Islam. The name of Kafiristan was changed to Nuristan which means "the land of light". Thus, the main energy of the guerrillas that resist the Soviet army in Afghanistan today were Kafirs ninety years ago.
KALASH-KAFIRS OF CHITRAL
The Kafirs of Afghanistan were converted to Islam, but those of Pakistan who belonged to British-India after the Durand Line (1893) still followed their own religion. These are the Kalash-Kafirs and estimably 1700 of them live in three valleys of Chitral District, North West Frontier Province of Pakistan