The name/term Quraishi signifies Arab ancestry in South Asia. The Quraish tribe diaspora is spread all around the world. Due to Arab invasions and incursions into foreign lands, the Quraish tribe was able to establish itself in these foreign lands. In the Indian-subcontinent, the Quraish tribe first arrived under the command of Muhammad bin Qasim. Later arrivals of the Quraish tribe came as the Arabs began to conquer the Indian sub-continent. Some of the Quraish tribe members intermarried with the local population, although some members of the Quraish tribes did not inter-marry with the local population. The Quraish tribe strongholds areas were in the area of what is now modern day Pakistan, although the descendants of the Quraish tribe are also found in Punjab India, Afghanistan, and Bangladesh.
Perished Arabs (العرب البائدة): These are the ancients of whose history little is known. They include ‘Ad, Thamûd, Tasam, Jadis, Imlaq and others.
'Pure Arabs (العرب العاربة): They allegedly originated from the progeny of Ya‘rub bin Yashjub bin Qahtan bin Hud so were also called Qahtanian Arabs.
'Arabized Arabs (العرب المستعربة): They allegedly originated from the progeny of Ishmael and were also called ‘Adnanian Arabs. The Quraish are a branch of the "Arabized Arabs".
The Quraish was a branch of the Kinana branch, which descended from the Khuzaimah, which descended from Elias bin Mudar, who descended from Adnan. The Quraish remained completely disunited until Qusai bin Kilab managed to rally their ranks on honourable terms attaching major prominence to their status and importance. After the introduction of Islam, the Quraish gained supremacy and produced the three dynasties of the Ummayads, Abbasids and Fatimides, which ruled as Caliphs.
Adam Sheth Enos Cainan Mahalaleed Jared Enoch / Idris Methuselah Lamech Noah / Nuh Shem Arhhazed Salih / Saleb Eber Pelag Rem Serag Nahor Tarukh Abraham / Ibrahim Ishmael / Ismail (Son of Hagar / Brother of Isaac) Sabat Yashab Lavi Ba'rab Qamat Nakor Imran Adnan Madh Nazar Imran Nasar Elias / Iliyas (Patriarch of the Quraish tribe)