The Treaty was signed at Kabi Lungchok by the Bhot King, Khye Bumsa representing the Bhutias and the Lepcha Chief Thekong Tek.

It is also inferred that the cultural traits of dress and family values of the Lepchas is akin to the Khasis of Meghalaya and their language has close affinity to that of Tangkul Nagas of Northern Manipur.

This conflict resulted in the Tibetans belonging to the Red Hat sect migrating from Tibet in large numbers seeking refuge in Sikkim.

[2][5] In the 17th century, Bhutias, in order to maintain cordial relationship with the Lepchas then decided with the help of three revered lamas from Western Tibet to consecrate a local Sikkimese person from Gangtok as the Chogyal of Sikkim.

However, Phuntsog Namgyal, the first Chogyal or the King was made the temporal and spiritual leader of Sikkim after duly verifying that his antecedents were strongly linked to the 9th-century prince of the Kingdom of Minvang in eastern Tibet.

In the 13th century, a prince of this dynasty known by the name Guru Tashi, based on a clairvoyant vision, decided to go south of Tibet to Sikkim, then known as "Denzong-the valley of rice" to seek his fortune.

Bumsa then settled down in Chumbi valley where he met the Lepcha religious leader, Thekong Tek, several times seeking his blessings to beget children.

Following the blessings of Thekong Tek, Bhums'a wife gave birth to three sons, and out of gratitude he visited the grand old sage in several times more in Sikkim nurturing an amicable relationship between them.

Then a treaty of blood brotherhood was signed at Kabi Lungchok between Thekong Tek and Khye Bumsa to reinforce the bonding between the two communities of Lepchas and Bhutias of Sikkim.

The area abounds in natural scenic beauty of rich forests with varied flora, shimmering streams, waterfalls and also many cultural monuments and historic sites.

[3][6] Kabi Lungchok region is also home to several species of birds such as: the pariah kite, crested serpent eagle, shaheen falcon, rufous-necked hornbill, chestnut-breasted partridge, black-breasted parrotbill, grey-crowned prinia and Ward’s trogon.