Bel Bibaha or Marriage with Bel ( a tropical fruit) A system in a community in Nepal. Newari community was the indigenous population of Kathmandu valley until approximately 250 years ago. The rulers of then Kathmandu were the Mallas who ruled over the valley and nearby hills for 600 since 1207-1779 C.E. The period is also known as the golden era in Nepal's history as many of the family, traditions and culture were cultivated during this period which are still prevalent among the Newari community. The tradition and culture has also been transferred to other places of the country in modern times as the indigenous people of the valley migrated to other parts in course of their vocation, which was mainly trading in goods.