The protected state of the Dzongu area in the Northern confines of the erstwhile Mayel Lyang has ensured independent development and evolution of the Lepcha culture. There has been considerable influence of the latter day Buddhist traditions and the Gombu culture in the social life yet the central ethos of the residents remain more Lepcha as compared to those of the lepchas who have been exposed to newer cultures entering into the Himalayan state. Historically the Dzongu reserve has always been the estate of the Queen of the Kingdom of Sikkim .
According to Gorer (1938) it was ensured by the Maharajah of Sikkim by dint of a law that only pure blooded Lepchas could be landowners in Dzongu and also maintain purity in the native tribe. The erstwhile rulers of Sikkim were quite successful in making Dzongu a Lepcha land. Gorer noted “It is only in zongu and in one or two small villages outside the reserve that there is a homogenous Lepcha society, practically undisturbed by alien influence” (Gorer, 1938 reprinted 1987 pg 37)
The erstwhile rulers of Sikkim took certain measures to uphold the indigenous tribal status of the Lepcha. In 1956, Sir Tashi Namgyal , the then maharajah of Sikkim issued a proclamation that stated, inter alia, “the interest of the indigenous and backward people in the North Sikkim area require to be safeguarded.” He also proclaimed “the rules relating to the settlement and /or carrying on of any occupation in such areas by outsiders (non-indigenous) only on a permit issued by the Sikkim Darbar shall continue to hold force” (Proclamation of His Highness Tashi Namgyal, KCSI, KCIE Maharajah of Sikkim, dated August 1956). Following the proclamation, the Home department, government of Sikkim issued a notification stating that “It is hereby ordered that any outsider (non-indigenous) settling and /or carrying on any occupation in the prescribed areas without permit issued by the Sikkim darbar shall be liable to imprisonment upto 3 years and / or fine upto Rs.10000 in default imprisonment upto 6 months.” (Notification no.3069/OS)