|c. 40 million|
|Regions with significant populations|
|United Arab Emirates||341,000|
English, Hindi, Urdu (Arabic/Sanskrit as liturgical languages) and numerous other languages widely spoken within the Sindhi diaspora
|Related ethnic groups|
|Other Indo-Aryan peoples|
Sindhis (Sindhi: ? (Perso-Arabic), (Devanagari), (Khudabadi)) are an Indo-Aryan ethnic group who speak the Sindhi language and are native to the Sindh region, in modern-day Pakistan. After the partition of India in 1947, most Sindhi Hindus and Sindhi Sikhs had to migrate to the newly independent Dominion of India and other parts of the world in order to escape religious persecution. Today, ethnic Sindhis are found predominantly in Pakistan while a minority resides in India.
The Indus Valley Civilisation went into decline around the year 1700 BC for reasons that are not entirely known, though its downfall was probably precipitated by an earthquake or natural event that dried up the Ghaggar River. The Indo-Aryans are believed to have founded the Vedic civilisation that existed between the Sarasvati River and Ganges river around 1500 BC. This civilisation helped shape subsequent cultures in South Asia.
For several centuries in the first millennium B.C. and in the first five centuries of the first millennium A.D., western portions of Sindh, the regions on the western flank of the Indus river, were intermittently under Persian, Greek, and Kushan rule, first during the Achaemenid dynasty (500-300 BC) during which it made up part of the easternmost satrapies, then, by Alexander the Great, followed by the Indo-Greeks, and still later under the Indo-Sassanids, as well as Kushans, before the Islamic invasions between the 7th-10th century AD. Alexander the Great marched through Punjab and Sindh, down the Indus river, after his conquest of the Persian Empire.
Sindh was one of the earliest regions to be conquered by the Arabs and influenced by Islam after 720 AD. Before this period, it was heavily Hindu, and Buddhist. After 632 AD, it was part of the Islamic empires of the Abbasids and Umayyids. Habbari, Soomra, Samma, Arghun dynasties ruled Sindh.
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The two main and highest-ranked tribes of Sindh are the Soomro -- descendants of the Soomro Dynasty, who ruled Sindh during 970-1351 A.D. -- and the Samma -- descendants of the Samma Dynasty, who ruled Sindh during 1351-1521 A.D. These tribes belong to the same bloodline. Among other Sindhi Rajputs are the , Bhuttos, Kambohs, Bhattis, Bhanbhros, Mahendros, Buriros,Bhachos, Chohans, Lakha, Sahetas, Lohanas, Mohano, Dahars, Indhar, Chachar, Dhareja, Rathores, Dakhan, Langah,Junejo, Mahars etc. The Sindhi-Sipahi of Rajasthan and the Sandhai Muslims of Gujarat are communities of Sindhi Rajputs settled in India. Closely related to the Sindhi Rajputs are the Jats of Sindh, who are found mainly in the Indus delta region. However, tribes are of little importance in Sindh as compared to in Punjab and Balochistan. Identity in Sindh is mostly based on a common ethnicity.
The connection between the Indus Valley and Islam was established by the initial Muslim missions. According to Derryl N. Maclean, a link between Sindh and Muslims during the Caliphate of Ali can be traced to Hakim ibn Jabalah al-Abdi, a companion of the Islamic Prophet Muhammad, who traveled across Sind to Makran in the year 649AD and presented a report on the area to the Caliph. He supported Ali, and died in the Battle of the Camel alongside Sindhi Jats. He was also a poet and few couplets of his poem in praise of Ali ibn Abu Talib have survived, as reported in Chachnama:
? ? 
"Oh Ali, owing to your alliance (with the prophet) you are true of high birth, and your example is great, and you are wise and excellent, and your advent has made your age an age of generosity and kindness and brotherly love".
During the reign of Ali, many Jats came under the influence of Islam. Harith ibn Murrah Al-abdi and Sayfi ibn Fil' al-Shaybani, both officers of Ali's army, attacked Sindhi bandits and chased them to Al-Qiqan (present-day Quetta) in the year 658. Sayfi was one of the seven partisans of Ali who were beheaded alongside Hujr ibn Adi al-Kindi in 660AD, near Damascus.
In 712 A.D., Sindh was incorporated into the Caliphate, the Islamic Empire, and became the 'Arabian gateway' into India (later to become known as Bab-ul-Islam, the gate of Islam).
Sindh produced many Muslim scholars early on, "men whose influence extended to Iraq where the people thought highly of their learning", in particular in hadith, with the likes of poet Abu al- 'Ata Sindhi (d. 159) or hadith and fiqh scholar Abu Mashar Sindhi (d. 160), among many others, and they're also those who translated scientific texts from Sanskrit into Arabic, for instance, the Zij al-Sindhind in astronomy.
The majority of Muslim Sindhis follow the Sunni Hanafi fiqh with a minority being Shia Ithna 'ashariyah. Sufism has left a deep impact on Sindhi Muslims and this is visible through the numerous Sufi shrines which dot the landscape of Sindh.
Abdul-Majid Bhurgri is pioneer of Sindhi Computing
Hinduism along with Buddhism was the predominant religion in Sindh before the Arab Islamic conquest. The Chinese Buddhist monk Xuanzang, who visited the region in the years 630-644, said that Buddhism dominated, but also noted that it was declining. While Buddhism declined and ultimately disappeared after Arab conquest mainly due to conversion of almost entire Buddhist population to Islam, Hinduism managed to survive through the Muslim rule until before the partition of India as a significant minority. Derryl Maclean explains what he calls "the persistence of Hinduism" on the basis of "the radical dissimilarity between the socio-economic bases of Hinduism and Buddhism in Sind" : Buddhism in this region was mainly urban and mercantile while Hinduism was rural and non-mercantile, thus the Arabs, themselves urban and mercantile, attracted and converted the Buddhist classes, but for the rural and non-mercantile parts, only interested by the taxes, they promoted a more decentralized authority and appointed Brahmins for the task, who often just continued the roles they had in the previous Hindu rule.
According to the 1998 census of Pakistan, Hindus constituted about 8% of the total population of Sindh province. Most of them live in urban areas such as Karachi, Hyderabad, Sukkur and Mirpur Khas. Hyderabad is the largest centre of Sindhi Hindus in Pakistan, with 100,000-150,000 living there. The ratio of Hindus was higher before the independence of Pakistan in 1947.
Before 1947 however, other than a few Gujarati speaking Parsees (Zorastrians) living in Karachi, virtually all the inhabitants were Sindhis, whether Muslim or Hindu at the time of Pakistan's independence, 75% of the population were Muslims and almost all the remaining 25% were Hindus.
Hindus in Sindh were concentrated in the cities before the creation of Pakistan in 1947, during which many migrated to India according to Ahmad Hassan Dani. Hindus were also spread over Sindh province. Thari (a dialect of Sindhi) is spoken in Sindh in Pakistan and Rajasthan in India.
The Cities and towns of Sindh were dominated by the Hindus. In 1941, for example, Hindus were 64% of the total urban population.
The Sindhi diaspora emigrated from India and Pakistan is significant. Emigration from the Sindh began before and after the 19th century, with many Sindhis settling in Europe, the United States and Canada with a large Sindhi population Middle Eastern states such as the United Arab Emirates and the Kingdom of Saudi Arabia.