[1] As per their oral tradition they called themselves "Riam", which literally means "Human being".
The Halam are further divided into 12 sub-tribes, namely Sakachep, Chorei, Molsom, Hrangkhol, Kaipeng, Kalai, Ranglong, Thangachep, Bongcher, Korbwng, Dab and Rupini.
According to their own belief and tradition the Halam originated from a place called 'Khurpuitabum' meaning 'a big cave,’ which is supposed to be somewhere in south central China.
Apart from Halam group, the Old Kuki tribes like Chorei, Khelma/Sakachep, Aimol, Ranglong, Hrangkhol inhabit in the Karimganj district of Assam, North Tripura and Dalai district of Tripura and Mizoram, Anal, Chawthe, Chiru, Koren, Kom, Lamgang, Purum, Tikhup and Vaiphei of Manipur also asserted that they are the descendant of a couple who came out of 'Khurpui' meaning 'cave' (B. Lalthangliana, 2001, Mizo Chanchin, Remkungi, Aizawl, p. 37) According to S.B.K.
The Halams group are said to be migrated from 'Khurpuitabum,’ a place in the hills just to the north of Manipur (Ibid.
From this definition, it can be presumed that Halam migrated to their present place of settlement through earth route.
So, the Raja appointed Sordar to rule Halam people, and an idol for each clan to worship.
[3] During the British Raj, the Halam of Tripura were transported to the Sylhet region to work in tea plantations.
They are divided into 12 clans; Machafang, Migli, Chorei, Bongcher, Hrangkhol, Kalai,Molsom, Rupini, Mitahar, Langkai, Ranglong and Kaipeng.