). Ukhrul was the headquarters of the Tangkhul Long (Tangkhul Assembly), as well as the Tangkhul annual fair locally known as “Leh Khangapha” used to be held at Somsai in Ukhrul. Hence the fall of Ukhrul in 1733 in the hands of the Meitei Maharaja herald the fall of the Tangkhuls country. The next significant relationship between the hills and the valley took place during the reign of Bhagyachandra (1759–1762 and 1763–1798). In 1779 king Bhagyachandra established a new capital at Langthabal about seven kilometers south east of Imphal. For the nest 17 years Langthabal remained as the capital. He employed many Tangkhul and Kabui Nagas in the digging of moats around the new capital of Langthabal. Of the Tangkhul chiefs, Khullakpa of Hundung and Ukhrul made friendship with the king. The Tangkhul Chiefs of Ukhrul, Hundung and Huining came to pay respect to the king. King Bhagyachandra allocated land to the Tangkhuls for settlement of a Tangkhul village in the valley at a place called Puru pat. .....
The relationship between the Tangkhuls and the Meiteis during the mediaeval period was not only of wars and conquests. They also carried on trade and commerce. The Tangkhuls supplied cotton to the valley. They also came and did sale and purchased in the Sanakeithel which was the principal market in Imphal. The Tangkhuls are used Manipuri coin of bell-metal locally called ‘sel’ as a medium of exchange which was first introduced during the reign of Khagemba (1597–1652). The boundary of Manipur and Burma ( Myanmar ) was laid down by an agreement signed between the British authorities (East India Company) and Burma on 9 January 1834 on the river bank of Nighthee ( Chindwin). The Article No.4 (iii) of this agreement relates to the Tangkhul country. “Fourth (iii) - On the north, the line of boundary will begin at the foot of the same hills at the northern extremity of the Kabo Valley and pass due north up to the first range of hills, east of that upon which
