In 1562, the Koch dynasty King Chilarai invaded and captured the Barak Valley from the Twipra Kingdom.

King Chilarai gave his brother, Kamal Narayan, authority over the region.

Raja Shri Krishna Chandra Dwaja Narayan Hasnu Kacharihe was the most powerful king of the Dimasa Kingdom at Khaspur.

During Krishna Chandra's rule, the Manipuri king sought help against the Burmese army.

Krishna Chandra defeated the Burmese in battle and was offered the Manipuri Princess Induprabha in thanks.

The last king of Cachar was Raja Govindra Chandra Dwaja Narayana Hasnu.

[4] At the time, the Cachar kingdom was ruled by two leaders—Raja Govindra Chandra Dwaja Narayana Hasnu in the southern plains, and Raja Tularam Thaosen in the North Cachar Hills (Dima Hasao).

[5] Because he died without a natural heir, his territories were annexed by the British under doctrine of lapse, adding it as the Cachar district of Assam.

[4][6][5] The British sent army officer T. Fisher to oversee the region; he established its headquarters at Cherrapunji on 30 June 1830.

[7] Cachar district occupies an area of 3,786 square kilometres (1,462 sq mi).

Christians are mainly found in tribal communities, and represent just 2.17% of the total population of the region.

Among the Bengalis, Hinduism and Islam religions are equally represented, although Muslims are only 37.71% of the region's total population.

Sikhism arrived in Cachar after Guru Nanak's visit to eastern India in 1508.

In the early 20th century, most of the Sikhs lived in the northern part of Cachar where they worked for the Assam Bengal Railway.

There are seven Assam Legislative Assembly constituencies in this district: Barkhola, Dholai, Katigorah, Lakhipur , Silchar, Sonai, and Udharbond.

[19][7] Dholai is designated for scheduled castes, among the most disadvantaged socio-economic groups in India.

[23][24] The southern part of the district was also recommended as a Dhaleswari wildlife sanctuary but has yet to receive that status.

Broad-gauge railways connect the district to Guwahati in Assam and other parts of India including New Delhi, Kolkata and Chennai; from here, regular train service is provided to all cities in North-East India.