The Thaheem are a Sindhi

Sindhi people

Sindhis are a Sindhi speaking socio-ethnic group of people originating from Sindh, a province Formerly of British India, now in Pakistan. Today Sindhis that live in Pakistan belong to various religious denominations including Islam, Zoroastrianism, Hinduism, Sikhism and Christianity...

 tribe of Arab

Arab

Arab people, also known as Arabs , are a panethnicity primarily living in the Arab world, which is located in Western Asia and North Africa. They are identified as such on one or more of genealogical, linguistic, or cultural grounds, with tribal affiliations, and intra-tribal relationships playing...

 origin found in Sindh

Sindh

Sindh historically referred to as Ba'ab-ul-Islam , is one of the four provinces of Pakistan and historically is home to the Sindhi people. It is also locally known as the "Mehran". Though Muslims form the largest religious group in Sindh, a good number of Christians, Zoroastrians and Hindus can...

 and Punjab

Punjab (Pakistan)

Punjab is the most populous province of Pakistan, with approximately 45% of the country's total population. Forming most of the Punjab region, the province is bordered by Kashmir to the north-east, the Indian states of Punjab and Rajasthan to the east, the Pakistani province of Sindh to the...

 provinces of Pakistan

Pakistan

Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

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Thaheems claim that this tribe is descended from an Arab tribe, the Banu Tameem, they migrated to the sub-continent (south Asia) and conquered India with Muhammad Bin Qasim. A majority speaks Saraiki language. Thaheem in Sindh region speak Saraiki and Sindhi. in Balochistan (Khuzdar) Thaheem tribe speak Balochi and Brohi.