They played important roles in the Indian Rebellion of 1857, the Partition of India and Sylhet referendum in 1947, and the Bangladesh Liberation War of 1971.

After initially residing at the court of the Lodi sultans of Delhi, he later moved to Sylhet, where he was granted land in the Prithimpassa mouza (located in the pargana of Longla) and first married the daughter of Birchandra Narayan, a Hindu prince of the Ita royal family in Rajnagar mouza.

Dev Bhallav, a Brahmin Shiqdar of Longla, was on a pilgrimage when he needed money, and so he borrowed fifteen gold coins from Salamat.

In reaction, Bhallav deemed that both of their Brahmin status had been lost and thus married her off to Salamat, and then migrated to Kashidham.

On one occasion, a scorpion entered into his jama without Rabi noticing, whilst he was assembled at the Nawab's court.

However, those close to him including Nawab Alivardi Khan noticed something was wrong and asked him what the problem was to which Rabi explained.

Impressed by how much respect Rabi showed to him, Alivardi Khan subsequently granted him the title of Danishmand (learned one in Persian) for his wisdom as well as large jagirs.

Rabi returned to Prithimpassa after Alivardi's death and also received land-grants from the likes of Nawab Mir Qasim and Emperor Alamgir II.

[5] In 1756, he founded a bazaar near the family estate known as Rabir Bazar (Rabi's market) which remains in existence today in the Kulaura Upazila.

He assisted the British forces against the rebellious Naga and Kuki tribes in 1793 and as a reward received his own troops and a jagir.

Gaus Ali Khan was Muhammad's elder son and he was notable for sheltering 300 insurgent sepoys who had looted the Chittagong Treasury during the Indian Rebellion of 1857.

[7] His son, Moulvi Ali Ahmad Khan (1842–1874), assisted the British during the Lushai Expedition against the Mizos and as a reward, he was excused from the Indian Arms Act, 1878.

[citation needed] Moulvi Nawab Ali Amjad Khan (1871–1905), an Honorary Magistrate and educationist, had hobbies of horse riding, polo and hunting.

Amjad's wife was Syeda Fatima Banu, daughter of Syed Aminuddin Hasan of the Narpati Haveli Bari in Chunarughat, Habiganj.

His work included serving as Minister of Agriculture in the cabinet of Muhammed Saadulah, serving as Minister of Power and Water Development in the cabinet of Gopinath Bordoloi, leading the Independent Muslim Party and playing a prominent role in the 1947 Sylhet referendum.

[citation needed] Ali Safdar Khan (1919–1974), popularly known as Raja Saheb, was the eldest son of Haider and born in the Hazarduari Palace at Murshidabad.

Wife: Sahebzadi Sirajunessa Khatun, the second daughter of Ali Ather Khan from Prithimpassa Chhoto shaheb bari.

He and his brother Ali Sarwar Khan (15 May 1924 – 21 July 1995) took part in the Bangladesh Liberation War as commanders of a regiment from the Tripura borders.

Safdar's own son, Ali Abbas Khan was a former member of parliament, educationist and social worker.

Safdar's other son, Ali Baquar Khan Hasnain was also a chairman of Prithimpassa Union Parishad.

Wahid later died, and Begum then married Syed Amanat Husayn, superintendent of the Special Police Department of East Pakistan.

Wife: Sahebzadi Syedatunnessa Begum, the eldest daughter of Nawab of Patna, India MLA Nawabzada Syed Mohammad Mehdi.

His other son Ali Wajid Khan was the Senior vice president of Kulaura Upazila Awami League.

[13] The family's earliest recorded ancestor, Sakhi Salamat, was a Persian nobleman from Greater Khorasan.

After initially residing at the court of the Lodi sultans of Delhi, he later moved to Sylhet, where he was granted land in the Prithimpassa mouza (located in the pargana of Longla).

The Zamindars of Monraj held a lot of land in Kulaura, Shillong, Manipur, Assam, Tripura and other parts of India.

Ali Akthar married Syeda Nadira Banu from Narapati West Haveli, Habiganj.

Ali Anwar married Pirzadi Syeda Sanwara Akther from Nasirpur Saheb Bari Brahmanbaria.