In 997 CE, Sultan Mahmud Ghaznavi, took over the Ghaznavid dynasty empire established by his father, Sultan Sebuktegin, In 1005 he conquered the Shahis in Kabul in 1005, and followed it by the conquests of Punjab region. The Delhi Sultanate and later Mughal Empire ruled the region. The Punjab region became predominantly Muslim due to missionary Sufi saints whose dargahs dot the landscape of Punjab region.

After the decline of the Mughal Empire, the Sikh Empire invaded and occupied Rawalpindi District. The local Muslims faced restrictions and oppression during the Sikh rule in the area. In 1849, the area was then conquered by the British after the Second Anglo-Sikh War. During the period of British rule, Kahuta Tehsil increased in population and importance.

In the year 1849, Kahuta along with much of the South Asia became part of British India, the undivided tehsil (which includes what is now Kallar Syedan Tehsil) is described in the "Imperial Gazetteer of India" as follows:

Kahuta-Eastern tehsil of Rawalpindi District, Punjab, lying in the Lower Himalayas, between 33° 18′ and 33° 48′ N. and 73° 15′ and 73° 39′ E., with an area of 206 square miles. Its eastern border rests upon the Jhelum River. The whole of the tahsil except the south-west corner lies in the hills, which in the north reach an elevation of over 6,000 feet. The population in 1911 was 94,719, compared with 91,371 in 1891. It contains 231 villages, of which Kahuta is the headquarters. The land revenue and cesses amounted in 1913-4 to 1.2 lakhs.^[1]

The predominantly Muslim population of the area supported the Muslim League and Pakistan Movement. After the independence of Pakistan from British rule in 1947, the minority Hindus and Sikhs faced many attacks and massacres by the Muslims so they migrated to India.

The tehsil is administratively divided into 13 Union Councils, two of which form the city of Kahuta; these are:^[2]

The population of the Kahuta Tehsil is approximately 220,576 according to the latest Complete census of Pakistan which was held in 2017.

Many Tribes are living in Kahuta like Sheikhs, Janjuas, Awans, Dhund, Jasgam Abbasis, Sudhans, Syeds, Sattis, Gakkhars, Gujjars, Khattars, Qazis, Junhals, Mughals, Chauhans, Siddiquis, Dhanyal & many others.

• Demography of Rawalpindi District