Panni (Pashtun tribe)
Panni or Parni refers to a Pashtun tribe in Afghanistan and Pakistan. Like other Pashtuns, they have Eastern Iranian genetic and ethnolinguistic heritage. They claim descent from Parthian people of Ancient Parthia . Most of them are settled in parts of Afghanistan and Pakistan, such as Ghor, Herat, Kandahar, Karachi, Quetta, Musakhail, Dera Ismail Khan, Mardan, Peshawar, Haripur, Kabul, Tank, Kohat, Sibi, while there are some communities in the United States, United Kingdom, and other Western countries. They were, at one point in time rule of Bahlol Lodhi or Lodhi Dynasty they had main rule over darbar. After ended of Lodhi dynasty, they scattered and migrated to various parts of the Indian subcontinent and the Middle East.  Some Pannis/Parnis have also migrated to South India. However, most of them are settled in Pakistan. The Zamindars of Karatia in Bangladesh are of Panni/Parni descent.

References

http://www.scribd.com/doc/32595536/Panni-Pathan-a-book-of-history-with-Bibliography
http://www.sibidistrict.com/ Sibi District panni Tribes

The Parthian and Early Sasanian Empires 

Gharghashti Pashtun tribes
Pashto-language surnames
Pakistani names
Social groups of Pakistan