A Little Known Tribal Group Dhimal of North Bengal had Categorized as non-Aryan tribe by various scholars of colonial India such asHodgson,Dalton,Hunter,Risley and OMalley .The present paper is an attempt to explore beliefs, rituals and their(Dhimal) social life which is important aspects of any particular community.Dhimal ritual is performed through different carnivals and festivals. A baby is named without astrological consideration. They prefer usually more son. They burning the married and unmarried death body. The member of the funeral procession are given a feast and the Hara purified.The study is a type of documentary research data have been collected almost from secondary sources after scanning of existing available literature which are scattered in different form.