Bolosan Group of Monoliths, Nuchubunglo, Assam Bolosan is presently known as Nuchubunglo, meaning “hill of stone jars.” This name was recently given to the village by the Zemi Nagas, who are the present inhabitants of the area. In 1932, several unique stone jars were discovered at different sites in the North Cachar Hills. These jars are believed to have been used as ancestral bone repositories by an ancient tribe; however, no tribe currently living in the district claims authorship of these jars. Similar stone jars have also been reported from Laos, Vietnam, and the Philippines. At all these locations, the jars were made of sandstone, a locally available material, and were shaped using metal tools, most likely iron chisels. The jars vary in form and include elongated bi-conical shapes, bi-conical forms, cylindrical structures, convex bi-conical shapes, barrel-like forms, and almost globular shapes with bulbous cavities. Source: Archaeological Survey of India