The Southeastern Iranian languages include some 11 (SIL estimate) languages and dialects spoken by about many people in Asia; this language family is a part of the Eastern Iranian language family. Each subfamily in this list contains subgroups and individual languages.
The Iranianlanguage group is part of a larger Indo-Iranian language subfamily and accounts for some of the oldest-recorded Indo-European languages.
He then adds that Dari is the official language of the royal courts and the language of Khorasan and Balkh and eastern Iran; Parsi is the language of the Moobeds of Fars ; Khuzi is the unofficial language of the royalty and comes from Khuzestan ; and Seryani originates in Mesopotamia.
It is agreed that the current Turkic form of the Azeri language supplanted and replaced Pahlavi in Azerbaijan before the Safavid dynasty, perhaps starting with the arrival of Seljukian Turks, and during a gradual course.
The Pamir languages of the Pamir Mountains of Central Asia are Shughni, Sarikoli, Yazgulyam, Munji, Sanglechi - Ishkashimi, Wakhi, and Yidgha.
The Shughni, Sarikoli and Yazgulyam languages belong to the Shugni-Yazgulami sub-branch.
The Munji language is closely related to Yidgha, and in 1992 there were around 2500 speakers in the Munjan and Mamalgha Valleys of northeastern Afghanistan.