North India
The earliest migration of Sayyids from Afghanistan to North India took place in 1032 when Gazi Saiyyed Salar Sahu (general and brother-in-law of Sultan Mahmud of Ghazni) and his son Ghazi Saiyyad Salar Masud established their military headquarters at Satrikh (16 km (9.9 mi) from Zaidpur) in the Barabanki district of Uttar Pradesh. They are considered to be the first Muslim settlers in North India. In 1033 Ghazi Saiyyad Salar Masud was killed at the battle of Bahraich, the location of his mazr. Ghazi Saiyyad Salar Masud had no children. His parental uncle Syed Maroofuddin Ghazi and his family lived in Tijara until 1857 before they migrated to Bhopal. Syed Ahmed Rizvi Kashmiri and Khan Bahadur Aga Syed Hussain were both Rizvi Sayyids through Aaqa Meer Sayyid Hussain Qomi Rizvi, whose sacred shrine is in the Zainageer Village of Sopore, Kashmir. Iraqi Sayyids or Iraqi biradri in Eastern Uttar Pradesh are descendants of Sayyid Masud Al Hussaini who was the direct descendant of Muhammads grandson Hussain ibn Ali and came to India from Iraq during the reign of Sultan Muhammad bin Tughlaq in 1330 A.D. He settled with his seven sons and forty champions in Ghazipur (U.P.) as some of them (i.e., Syed Abu Bakr in Nonahra, Ghazipur) converted to Sunni Islam in the reign of Sultan Ibrahim Lodhi around 1517. His Shia descendants are now known as Sayyids of Ghazipur.Sayyids of Syed nagli, or Said Nagli, or the Baquari Syeds had migrated from Termez (Present day Uzbekistan) during the Sultanate era.
Several visited India as merchants or escaped from the Abbasid, Umayyad and Safavid. Their names appear in Indian history at the dissolution of the Mughal Empire, when the Sayyid brothers created and dethroned emperors at their will (1714–1720). The first Muslims appointed to the Council of India and the first appointed to the privy council were both Sayyids. Afghanistan
In Afghanistan, Sayyids (Sadat) are recognized as an ethnic group. On 13 March 2019, addressing the Sadat gathering at the presidential palace (Arg), President Ashraf Ghani said that he will issue a decree on the inclusion of Sadat ethnic group in new electronic national identity card (e-NIC).President Ashraf Ghani decreed mentioning Sadat tribe in the electronic national identity on 15 March 2019.Sayyids of the north are generally located in Balkh and Kunduz; while in the east they can be found in Nangarhar. While most are Sunni Muslims, some in the Bamiyan province are to Shia. India
The total Sayyid population in India is 7,017,000, with the largest populations in Uttar Pradesh (1,493,000), Maharashtra (1,108,000), Karnataka (766,000), Andhra Pradesh (727,000), Rajasthan (497,000), Bihar (419,000), West Bengal (372,000), Madhya Pradesh (307,000), Gujarat (245,000), Tamil Nadu (206,000), and 25,000 in Jammu and Kashmir. Sayyids are also found in the north-eastern state of Assam, where they are locally also referred to as Dawans.In India, Sayyids of Hadramawt (who originated mainly from the Arabian Peninsula and the Persian Gulf) gained widespread fame.